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Operator
Good afternoon, and welcome to the Carvana First Quarter 2018 Earnings Conference Call.
(Operator Instructions)
Please note, this event is being recorded.
I would now like to turn the conference over to Mike Levin, Vice President of Investor Relations.
Please go ahead.
Michael Louis Levin - VP of IR
Thank you, Austin.
Good afternoon, ladies and gentlemen, and thank you for joining us on Carvana's First Quarter 2018 Earnings Conference Call.
Please note that this call will be simultaneously webcast on the Investor Relations section of the company's corporate website at investors.carvana.com.
The first quarter shareholder letter is also posted on the IR website.
The schedule of investor conferences we will be attending over the next several weeks can be found in the Events section of our IR site, and we look forward seeing all of you out on the road.
Joining me on the call today are Ernie Garcia, Chief Executive Officer; and Mark Jenkins, Chief Financial Officer.
Before we start, I would like to remind you that the following discussion contains forward-looking statements within the meaning of the federal securities laws, including but not limited to Carvana's market opportunities and future financial results that involve risks and uncertainties that may cause actual results to differ materially from those discussed here.
A detailed discussion of the material factors that cause actual results to differ from forward-looking statements can be found in the Risk Factors section of Carvana's most recent Form 10-K and Form 10-Q.
The forward-looking statements and risks in this conference call are based on current expectations as of today, and Carvana assumes no obligation to update or revise them whether as a result of new developments or otherwise.
And now with that said, I'd like to turn the call over to Ernie Garcia.
Ernie?
Ernest C. Garcia - Founder, President, CEO & Chairman
Thank you, Mike, and thanks, everyone, for joining our call.
We're very proud of our strong first quarter which was a great start to the year.
We exceeded our guidance across the board and are raising our estimates for the year.
The strong performance was driven by strong demand for our offering and strong execution, which allowed us to continue servicing that growing demand while delivering exceptional experiences to our customers.
Q1 was the first time where our quarterly unit sales grew by over 10,000 units year-over-year.
Our triple-digit growth rate has been the fastest among the public auto retailers since we launched.
But for the first time, this quarter, we also had the fastest organic growth in absolute unit terms among all the public automotive retailers.
This is a significant achievement that speaks clearly to the quality of experiences we are delivering to our customers, to the level of demand that exist for those experiences, to the scalability of our business model and to the quality of our execution to date.
We are proud of this achievement and excited about what it suggests for the future.
We had a strong quarter in GPU, comfortably surpassing our guidance.
Mark will give more detail on what drove those gains, but they are broad-based and have us feeling very confident about our midterm goal of $3,000.
We continue to show significant progress in EBITDA margin in the first quarter, driven by unit growth, improvement in total GPU and the leveraging expenses that is inherent in the business.
The path to profitability is clear.
Q1 was a great quarter for market openings as well.
We opened to 12 markets in the quarter and increased our population coverage to just over 45%.
We also opened a vending machine in Tampa and opened another this morning in Charlotte.
Our market ops expansion, real estate and logistic teams continue to deliver, and we are grateful for everything they do.
In April, we completed our acquisition of Car360.
Car360 blew us away with both the quality of their technology and, even more importantly, with the quality of the team they assembled to build it.
They bring to Carvana an expertise in computer vision and 3D reconstruction that we didn't previously have and pair that expertise with an enthusiasm and creativity that complements our own and will continue to push us to put highly functional and beautiful products in front of our customers.
We believe the combination of this expertise with our proprietary photo booths will create an experience unlike any other.
We'll be rolling out some of the initial integrations prior to year-end and plan to relentlessly continue improving our merchandise technology from there, always aiming to increase the power and improve the usability of our interface to allow our customers to explore the cars they're interested in and to get them to smile while they're doing it.
We've now been a public company for just over a year, and in that short time, we've made a tremendous amount of progress.
1 year ago, we were coming off the year about 18,000 units.
This year, we expect to sell roughly 5x that amount.
A year ago, we were coming off the year at $1,023 in total GPU.
This quarter, we expect to cross $2,000.
A year ago, we are coming off a year of negative 23.2% EBITDA margin.
This quarter, we expect to be between negative 8.5% and 11% EBITDA margin.
Taking an even larger view, we crossed over the fifth anniversary of our first market launch in the first quarter.
5 years ago, we were a small team with a dream that we could change the way people buy cars by being thoughtful about what the customer needed and wanted and leveraging modern technology to reimagine the entire process of buying a car.
We wanted to change the way cars are produced so we built a system to do it all online in a centralized way.
Excuse me, procure.
So we built a system to do it all online and in a centralized way.
We wanted to change the way cars were merchandised so we built a photo booth that we've paired with the 7-day return policy that we believe could replace the test drive.
We wanted to take advantage of the fact that eliminating test drives would allow us to centralize our inventory so we've built reconditioning and certification centers at a scale that had never been seen before.
We wanted to give our customers everywhere access to all those centralized cars so we built a logistics network from scratch to maximize our customer's selection.
We wanted to change the way customers finance cars so we built a simpler, more intuitive system that allowed our customers to complete the process in minutes.
We want to give our customers memorable experiences so we built a team of exceptional people and united them with the culture of customer centricity.
We wanted to do all that and prove that the unit economics could be compelling.
In summary, we wanted to build a paradigm-shifting company.
That was just 5 years ago.
Over the last 5 years, this team has systematically turned that dream into a reality.
We aren't done dreaming or building.
We aren't even close.
We look forward to the next 5 years and believe we can accomplish even more over that period than we did over the first 5. Mark?
Mark Jenkins - CFO
Thanks, Ernie.
Thanks, everyone, for joining us today.
Unless otherwise noted, all comparisons in what follows will be on a year-over-year basis.
Q1 was the strongest quarter of our company's history and we're excited about what this quarter means for our growth trajectory.
Retail units sold totaled 18,464 in Q1, an increase of 122%.
Total revenue was $360.4 million, an increase of 127%.
Total gross profit in the quarter grew by 251% to $34.2 million, and total GPU in Q1 was $18.54, an increase of $685.
We continue to see broad-based improvements in GPU, including a reduction in average days of sales to 70 days in Q1 from 93 days a year ago, as well as gains in reconditioning, wholesale, financing and new products.
EBITDA margin was negative 12.4% in Q1, an improvement of more than 300 basis points from the prior quarter and more than 900 basis points year-over-year.
In addition to GPU gains, we are showing significant operating leverage while also rapidly expanding our geographic footprint.
We opened 12 markets in Q1, our largest number ever, and have opened 6 more so far this quarter.
We now expect to open 35 to 40 markets in 2018, bringing our end of year total to 79 to 84 markets.
There are more than 200 metropolitan areas in the U.S. with a population greater than 200,000 people.
And these markets collectively make up about 80% of the U.S. population.
We believe our online sales model is well-suited to serving customers in markets of all sizes.
And that these statistics providing useful framework for our expansion opportunities over time.
For the full year, we are raising our outlook to 90,000 to 94,000 units and $1.75 billion to $1.85 billion in total revenue.
We are also raising our GPU outlook for the year to 19 75 to 21 75 based on the strong execution we are seeing across all parts of the transaction.
In the second quarter, we anticipate continued gains across our key financial metrics.
We expect retail units sold of 20,000 to 22,000, an increase of 87% to 106%.
We expect total GPU to be $2,000 to $2,200, an increase of $500 to $700 year-over-year as we march toward our midterm goal of $3,000.
We expect EBITDA margin to be between negative 11% and 8.5%, reflecting continued operating leverage as we grow.
You should use approximately 143 million weighted average shares on a fully exchanged basis in Q2 and approximately 145 million for Q3 and Q4.
We ended Q1 with $121.5 million in cash and equivalents.
We also ended the quarter with $46.2 million in capacity under our master sale-leaseback agreement and more than $40 million in real estate assets on our balance sheet eligible to be sold under this agreement.
On April 30, we completed a follow-on public offering of 6.6 million shares of Class A common stock, yielding proceeds after underwriting discounts of approximately $173 million.
We believe this additional capital provides a significant amount of operating flexibility as we continue to execute our plan.
As we look forward to the remainder of 2018, we are excited about continued progress toward our financial goals.
We intend to continue to expand our footprint, rapidly grow sales, increase GPU and demonstrate operating leverage.
Thanks for your attention.
We'll now take questions.
Operator
(Operator Instructions) Our first question comes from David Lim with Wells Fargo.
Hyong Lim - Senior Equity Research Analyst
The question that I have is, can you explain -- or can you dimensionalize why was wholesale so strong from a GPU perspective?
And then, can you bridge the retail GPU, the $902 versus the $555?
I mean, how much of it came from the days turn inventory improvement versus reconditioning process and other efficiencies?
Ernest C. Garcia - Founder, President, CEO & Chairman
Sure, David.
So happy to hit that.
So we have our strongest wholesale quarter in our company's history in Q1.
I think we averaged $579 per wholesale unit sold.
When you apply that to retail units, it was approximately $73 per retail unit sold of wholesale gross profit.
Those are the strongest numbers that we've had to date.
I think there's a number of things that are driving that.
So first, I think our wholesale team did a tremendous job executing and selling these units.
I think we're starting to build up a brand in the wholesale market, much like we've done on consumer side of the market where dealers know we're a place where you can come to buy high-quality wholesale cars.
I think, secondly, we've talked about this before, but we acquired Carlypso in mid-2017 and placed one of the Carlypso founders over the product side of buying cars from customers, increasing our management focus on that area and also have enhanced our technology for valuing cars that we buy from customers.
Now having said all that, we still view ourselves in the very early innings of building out a business of wholesaling cars or buying cars from customers.
I think we're cautiously optimistic about how that business is going, but it's still very, very early.
And we are pleased with the results in the quarter, and we'll look to continue to build on those but are in the early innings there.
As it relates to retail gross profit, the second part of your question.
So we stepped up by about $137 in retail gross profit quarter-over-quarter.
The biggest contributor to that sequential gain was the absence of any promotional activity in Q1.
As you may recall in Q4, we do our annual Cyber Monday promotion, which has an impact on retail GPU.
In this particular Q4, we also did some -- we did some hurricane-related promotional activity.
And so that was the biggest driver of the sequential increase.
I think, as you may recall on the previous call, we thought Q1 retail GPU might be a little softer than we otherwise would have expected given the patterns that we were seeing in the wholesale market and the associated depreciation rates at the end of Q4.
We were generally pleased with the number that we put up, which as part of our GPU [beat], was exceeding our own expectations there on retail, and we're generally pleased with that outcome given what we were seeing in the wholesale market dynamics.
Ernest C. Garcia - Founder, President, CEO & Chairman
David, this is Ernie.
All I would add is I think the path to $3,000 is clearer than it's ever been.
And as we said in the prepared remarks, we expect to cross over $2,000 this quarter.
We expect to be at a similar turn time to where we were in the first quarter.
It gets really easy to extrapolate up that $3,000 number by -- imagine that we continue to push down that turn over time.
We continue to get the benefit of scale from better leveraging the logistics network and the inspection centers.
From there, it's a hop, skip and a jump to $3,000, and we think we can get there with products that we're already offering to customers.
So we're feeling really, really good about that path.
Hyong Lim - Senior Equity Research Analyst
Just a follow-up on that $902 versus that $555.
Was -- I mean, was like half of that coming from essentially the inventory turnovers, improvement in inventory turn?
Or was it a little bit more significant than that?
Mark Jenkins - CFO
Sorry, David.
To be clear, I was talking about sequential changes in retail GPU, just to be clear.
On a year-over-year basis, you're certainly right.
So we decreased average days of sale by 23 days year-over-year.
That's a large part of the bridge between Q1 '17 retail GPU and Q1 '18.
And we also made gains in reconditioning and inventory management over that period.
I think we talked about those over the course of our calls in 2017 some of the initiatives that we executed there.
But average days of sale coming down was a big driver, and then gains on the cost side, particularly as it relates to reconditioning, was a secondary driver.
Hyong Lim - Senior Equity Research Analyst
Got you.
And then my final question is, can you also bridge the $879 and $596?
Is it just more add-ons, or are you getting a little bit more on the Ally side?
Mark Jenkins - CFO
Sure.
So adding GAAP waiver coverage in mid-2017 was certainly part of that bridge year-over-year.
Another part of that bridge year-over-year was increases in our finance gross profit per unit.
That came from, in part, a softer-than-normal quarter on finance gross profit in Q1 2017 as we were transitioning over to Ally for the first time.
And so we made some gains there despite lapping that softer-than-usual quarter.
We've also made gains over time in optimizing our scoring and pricing technology, and that has led to finance gross profit relative to a year earlier as well.
Operator
And our next question comes from Alvin Concepcion with Citi.
Nicholas Jones
This is Nick Jones on for Alvin.
First question would be, and I know it's probably a little early, is there any update in repeat customers in your early markets?
I know you commented on lapping your fifth anniversary, I think, in Atlanta.
And then any additional color on progress in sourcing your own vehicles?
Will you need to build out a larger team to improve on that and match kind of what CarMax is doing?
Ernest C. Garcia - Founder, President, CEO & Chairman
Yes, so on your first question.
I think, to your point, we've just kind of crossover our fifth year in operation in Atlanta.
The average consumer purchase cycle for buying a car is about once every 5 years, so we're just kind of heading into the meat of repeat purchases for that cohort, which was on the order of 100 cars in that first year in Atlanta.
So the data is still relatively thin.
That said, we do have early data from kind of customers that are buying a second or third car much more quickly than average.
And I would say that the early data there looks very strong, and we're very excited about it.
But it's still kind of noisy enough and the count is small enough, so I don't think we're comfortable quantifying that.
But I would say we're optimistic about that and feel good.
I think if you look at the cover of our shareholder letter for example, there's a picture up there of a family that's bought 6 cars from us.
And I think that's not exactly repeat customers, but it gives you a sense of when we touch someone in the family, we tend to sell cars to everyone in the family.
So I think the early indications there are good but nothing to statistically nail that down just yet.
As far as progress in sourcing our vehicles goes, I think I'd go back to Mark's answer as it related to the wholesale gains.
This was our record quarter in average wholesale margin, and every bit as importantly, our record quarter in terms of cars that we bought from customers.
I think we are making a lot of progress there, looks really good.
It is off a relatively small base, so I don't know that we're ready to give visibility to what our expectations are for the future there yet.
But I would say the last several months have been very encouraging.
The team is doing a great job.
They're testing a number of things and working on just improving conversion in the funnel and then also starting test getting more people into the top of that funnel.
And I think that looks good, but it's too early to quantify that as well.
Operator
The next question comes from Nat Schindler of Bank of America Merrill Lynch.
Nathaniel Holmes Schindler - Director
Is there any way you can comment at all on the average credit score for your customers that you're sending onto Allied (sic) [Ally] for -- on your financing side?
And also, is -- are rising rates having an effect allowing for potentially more money to be from Allied (sic) Ally for loans that you're passing them?
Ernest C. Garcia - Founder, President, CEO & Chairman
So on your first question.
I think what I would say is in every demographic dimension, credit age, income, gender mix, et cetera, we've seen a pretty standard mix of buyers that are buying cars from us.
So I don't think there's anything significant to call out there, and there hasn't been any meaningful migration in the kind of population we're servicing.
So I think that continues to play out as expected.
As it relates to rising rates, I think what rising rates do impact us, and I would say the impact is moderately negative.
When rates rise, it makes any given receivable that we originated worth less.
We then can take those rising rates and put them into our pricing system and pass them on as long as that's what the rest of the market is doing.
But the way that we actually implement that is, instead of just passing those rates straight through, we basically watch to see what's happening to the consumer and straight price sensitivity to make sure that we can kind of see in customer responses that the rest of the market is passing those through.
And then we will pass them through, and that kind of creates a little bit of natural lag there that creates something of a headwind.
We don't think it's super meaningful, but it is a negative, all else considered.
Nathaniel Holmes Schindler - Director
Okay.
And one more follow-up that's completely unrelated.
Is the question about -- I was wondering about your GPUs.
Have you done any change to what you think your basic discounting is versus comparable used car sales?
Ernest C. Garcia - Founder, President, CEO & Chairman
No.
That's been consistent.
Nothing specific to call out there either.
Operator
And our next question comes from Colin Sebastian with Robert Baird.
Colin Alan Sebastian - Senior Research Analyst
Nice quarter, guys.
Ernie, maybe just a couple for you to start.
Could you perhaps expand on more details around the pinch points that you mentioned have emerged of the past several months?
And then you also talked about improving conversion rates in the funnel on website traffic.
Is that something you've already seen even with the national ad campaign presumably you're bringing more out-of-market traffic?
Or is that more of an expectation you have as you add more functionality to the website?
Ernest C. Garcia - Founder, President, CEO & Chairman
Yes.
Well, first of all, I think, Colin, you're the first one that would give us credit for a good quarter at the beginning of your question, so we've got to thank you for that.
So that's a moment for celebration.
I think, on your first question, I think we view this is as a really high-class problem.
So I think the first thing I would say is, for the year, we're raising our estimates for total revenue and units sold.
And I think what kind of is driving these pinch points is we saw roughly a 50% jump in sales, 45 days ago when -- or roughly 45 days ago when tax refunds hit.
And we obviously have a plan going into tax season, and we're prepared for the expected volume increases.
But 50% at this scale, that increase in sales on a monthly run-rate basis by something in order of 2,500 units a month, that's basically like a $600 million in your business that shows up kind of out of nowhere.
And wherever that volume shows up that quickly, I think you're always going to find some holes in your plan.
So I think it's going very well, but the form that those pinch points take is we'll see a little extra demand versus what we are ready to handle that kind of strained certain logistic routes.
And so while most the logistic systems have excess capacity, there are certainly routes inside the system that are overwhelmed right now and that are extending out delivery times.
And we tend to see those the delivery times being extending out leading to decreased conversion rates.
Similarly, we now have 62 markets open.
We have 62 markets.
Sometimes you're staffing doesn't quite keep up with the pace of demand in some of those markets.
And that can also lead to kind of pushing out delivery times, which also can constrain demand a little bit.
So I think those are what are driving it.
Now as it relates to the demand that we're seeing, I would say we're seeing very, very high-quality demand and are extremely excited about it.
Basically, I've seen that all this year starting in January and flowing all the way through.
We're definitely seeing much higher growth rates kind of at the top of the funnel than we're able to convert into sales today because of some of those pitch points, but we're working very quickly to resolve them.
And that demand is what has us feeling so good about the year.
Colin Alan Sebastian - Senior Research Analyst
Okay.
And then maybe Mark, regarding the advertising expense, I was wondering if you could break that out between the portion that are brand or national ad spend versus more direct response or local spend and how you expect that to trend over time.
Mark Jenkins - CFO
Sure.
So at a high level, our marketing mix in terms of brand versus more direct has not changed too much.
I think we hover around 50% TV as a fraction of the total spend for like quite a while now.
That's still roughly the case.
Within that TV bucket, we are transitioning more toward national advertising as we expand our geographic footprint.
That's one of the places where we see a lot of positive feedback in opening more markets.
So one of the nice things about opening markets is the more markets we have, the more efficient it becomes for us to utilize national TV spend as opposed to more local brand channels.
And so that has good positive impact overall.
I think the results that we're seeing early on from our marketing spend are positive.
Our 2018 cohort has the lowest first quarter CAC that we have on record.
So we're excited about that.
I think -- I do think as we look forward over time, we'll continue to expand our national TV advertising as a share of spend.
And again, that's just comes with opening more markets and expanding our service to a wider set of customers nationwide.
Operator
Your next question comes from Sharon Zackfia with William Blair.
Sharon Zackfia - Partner & Group Head of Consumer
I guess, Ernie, you're talking pretty quickly about those pinch points that you were seeing in satisfying demand.
Is that -- am I understanding correctly?
Is it the -- you don't have adequate amount of haulers to get the cars to people in the time that you'd like to, or could you go over that again?
And I guess I'm asking that in relation to logistics cost because they kind of went up on a per car basis for the first time, I think, at least as far back as my model goes.
So I'm wondering if that's kind of tied together.
Ernest C. Garcia - Founder, President, CEO & Chairman
Yes.
So first of all, I guess, just to -- yes, is the answer, sort of, I would say.
So if you think about we have 62 markets now.
There are many, many different logistics legs that are connecting all those markets together.
We've got legs connecting the different inspection centers, and we've got legs connecting out to all different markets.
We're shipping cars to customers across the country.
Oftentimes, cars go through many different legs.
So all you need is a pinch point in any of those legs, and it can result in delivery times being extended out for some customers in markets that rely on those legs.
It's -- so that's the form that it's taking.
Now we also invested significantly in the logistics network in preparation for all of this growth, and so that's a big part of what you're seeing.
And across logistics network, in general, we've got excess capacity but we certainly have legs that are kind of constrained today.
Mark Jenkins - CFO
And then, Sharon, one other point that I would make there is when we're growing at these very, very high rates, there's a bit of a lag between when we have to make expenditures on things like the logistics network and when we realize the large sales gains.
So in a quarter like Q1, we're building out the logistics network, getting ready for that 50% jump in demand that Ernie described.
We're doing that well ahead of time.
And so that sort of that lag effect can give rise to some temporary fluctuations in something like logistic expense as well.
Sharon Zackfia - Partner & Group Head of Consumer
Okay.
And then a follow-up.
Mark, could you give us an idea of what kind of the range of CapEx might look like for 2018?
Mark Jenkins - CFO
Sure.
So we historically have not given CapEx guidance.
Part of the reason for that is one of the more unpredictable parts of our business is predicting when exactly we're going to launch vending machines, and vending machines are, far and away, the largest CapEx component for us.
I think if you think about the key drivers of CapEx, again, we talked about it quite a bit, but it is those vending machines as well as our hauler network.
Those together make up the meaningful majority of our total CapEx.
So in terms of specific guidance, we haven't done that because of the uncertainty around when exactly and how many exactly vending machines we're going to open.
But we've had a relatively consistent pattern over time.
I wouldn't expect anything too crazily out of the ordinary.
Operator
And our next question comes from Ron Josey with JMP Securities.
Ronald Victor Josey - MD and Senior Research Analyst
Just maybe 2 quick ones.
On days of sales outstanding, I just wanted to drill down a little bit further there just given the importance to gross profit.
And so 1Q's DSOs 70, the second quarter in a row in 70s, and that's despite the inventory ramp in the 1Q seasonality.
So Mark, is it fair to think, basically, going forward, you're most likely to see DSOs continuing to come down rather than revisiting the 90 to 100-plus DSOs that we saw last year.
And then, Ernie, just a follow-up to your comment on like the pinch points and there are certain legs that are constrained today.
I totally understand that.
But when you're launching new markets, are you doing so to avoid those overstressed legs?
And maybe bigger picture, can you just talk about the trade-off between perhaps slowing down the market roll-offs -- rollouts, excuse me, to basically get those legs up and running versus accelerating them as we're doing now?
Mark Jenkins - CFO
Sure, Ron.
So to hit the point on average days of sales.
So we've made a tremendous amount of progress on bringing down average days of sales.
We were at 97 days as recently as Q3 2017 and have pulled that down to 70 days in Q1.
We do expect that to fall a bit further in Q2.
And then given all the progress we've made, we're looking for the rest of the year to keep that in a relatively stable and reasonable range from Q2 on to the rest of the year.
Part of that is driven by our inventory plan.
I think when you think about our plans for inventory over the course of the rest of this year, we expect inventory to remain relatively flat within a range up or down for the next couple of quarters and then grow toward the end of the year as we have done in the past in order to satisfy first half 2019 demand.
Ernest C. Garcia - Founder, President, CEO & Chairman
Yes.
And then just to get into your second question.
I do think -- so most of the stress in the system is basically moving cars out to the East, where we have our oldest and most mature markets.
And most of the -- or many of the boxes we're opening are in parts of the network where we are less stressed.
So we do take that into account.
But we also expect to fix these pinch points relatively quickly over a matter of months.
So I wouldn't say it's a huge consideration.
I also would say that the pinch point emerged less as a direct result at least of market openings.
It's more a result of just kind of the large discontinuous growth that we see as we head into kind of late February when we see tax refunds drop.
And there's just a lot of demand that shows up there.
We do our best to plan for that demand ahead of time.
But I as I said, we have 62 markets, and you're predicting demand at that level of granularity, and then you've got many, many logistic routes.
If you're off a little bit here or there, some pinch points are going to emerge, and then we just got work to quickly remedy that.
Operator
And our next question comes from Seth Basham with Wedbush Securities.
Seth Mckain Basham - SVP of Equity Research
My first question is on the cadence of the quarter.
Clearly, you guys did a great job beating your top line expectations.
Could you describe what happens from a monthly cadence perspective?
What drove the upside in March, specifically?
Ernest C. Garcia - Founder, President, CEO & Chairman
Sure.
We'll give some color on that.
So I guess what I would say is, I think, on our last call, we talked about the expected increase in demand that we would see in late February.
We kind of called out being able to handle that operationally as probably the biggest variable on our guidance.
I think we did a good job handling that in March.
But we definitely believe that there was more demand in March than we were able to convert.
I think that's much less true of January and February because that kind of comes at a point when we're more at a steady state and we're able to handle kind of that level of sales.
And then I think just the pinch points that emerged in March, as you see those higher volumes, are kind of rolling over into April and May, and we're expecting to resolve those relatively quickly, which is why we feel so good about the full year.
Seth Mckain Basham - SVP of Equity Research
Got it.
That's helpful color.
And secondly, so think about your vehicle acquisition.
How are those turning from a cost standpoint?
Are you guys making progress on lowering acquisition costs of vehicles you're acquiring from auctions?
And what is that mix between vehicles acquired from auctions and other sources and how that trended?
Mark Jenkins - CFO
Sure.
So I think I would describe broadly our vehicle acquisitions from auctions as being approximately even or stable.
I think we're constantly looking to make improvements there, constantly improving our technology.
And so we really like what we're doing there overall.
But it's been relatively stable over the last short time period.
I think -- in terms of mix, I think that's been fairly stable as well.
One thing that we talked a lot about, particularly as it relates to wholesale on this call, is the opportunity in sourcing more cars directly from customers.
I think we've seen some nice progress there in terms of the volume of cars that we're taking in from customers.
That's showing up to a degree in our wholesale volumes.
We're also feeling good about the margins on those cars that we're taking in.
So as I mentioned earlier, we're cautiously optimistic about our abilities to source more cars from customers.
We're in the very early innings of that today.
Seth Mckain Basham - SVP of Equity Research
Okay, that's helpful.
And then lastly for me is thinking about one of your oldest markets, Atlanta.
I know you don't like to talk about the individual markets in too much detail.
But how should we, as investors, think about the EBITDA margins you're earning right there as a proxy for the future when other markets mature?
Mark Jenkins - CFO
Sure.
So I think the most straightforward way to think about market contribution is to use the cap data that we provided in our most recent 10-K.
And then you also have -- you see our results and our guidance on GPU.
One key element in thinking about market economics is the fact that our company GPU is a pretty good proxy for the average market because we do have centralized inventory, we have a centralized transaction platform and all markets are drawing upon that centralized inventory, using that centralized transaction platform.
And so one easy way to think about contribution is we had a $440 CAC in Atlanta in Q4.
We had in $1,850 GPU this quarter.
And so that's the starting point.
Now there are other expenses in the market.
We have to do last mile delivery.
We've got advocates in the market who are driving haulers out to the customer's door.
We're spending some gas to get those haulers out to the door.
That's a relatively inexpensive cost compared to the cost of operating a brick-and-mortar dealership.
And so we -- those costs are relatively small, but those are there as well in addition to 2 the big line items that you have.
Ernest C. Garcia - Founder, President, CEO & Chairman
And then, one, just I think, useful and interesting data point there as well is in March, we had, in terms of sales per market operations employee, nationwide, we're up to 32 sales per market operations employee, which was up 40% year-over-year.
So you can see there's a lot of leverage showing up in those additional line items as well.
Operator
Your next question will come from Steve Dyer with Craig-Hallum Capital Group.
Ryan Ronald Sigdahl - Associate Analyst
This is Ryan on for Steve.
Just one question for us.
You guys have talked a lot about operating leverage.
And when I look at your 2018 guidance for revenue and GPU, both went up implying better gross profit.
However, EBITDA margin guidance implies a bigger loss.
Can you help me reconcile the higher gross profit and what appears to be even higher incremental OpEx?
Mark Jenkins - CFO
Sure.
Yes, I think we're obviously very pleased with the operating leverage that we've shown in the business.
I think, in Q1, we increased -- improve EBITDA margin loss by 900 basis points.
That included a reduction of approximately $1,000 per unit in SG&A.
That reduction in SG&A was split across 2 big buckets, compensation and benefits and then other overhead costs.
And so we do expect to see future leverage there as well.
As it relates to the rest of the year, I think we're feeling good about all of our guidance.
I think the -- we saw a very strong results on GPU in Q1.
We're feeling very good about our above $2,000 GPU guidance for Q2.
And so we're feeling good about the year generally.
Operator
Our second question will come from Sameet Sinha with B. Riley FBR.
Sameet Sinha - Senior Analyst of Internet and E-commerce
So I guess staying on the topic of operating leverage.
The ad spend per unit kind of stayed pretty much flat year-over-year.
And I guess, Mike, to your point, you're talking about how you're prepping or investing in advance of your seasonally strong quarter.
So can you touch on that?
And also, talk about ad spend and the kind of factors you used to decide on ad spend.
Is it number of markets, your population, number of expected units?
Can you help us think about that, especially as we try to model this out?
And my second question for you, Ernie, is you spoke about the pinch points.
I guess one of the other pinch points I'm thinking about is just in terms of people searching on your site and not finding the right inventory.
Can you quantify that?
Is there a way to figure out how many people leave or do not purchase just because they couldn't get something in the right age or right mileage or configuration and just leave and that how you use those data points to kind of configure your future purchases?
Mark Jenkins - CFO
So Sameet, on advertising leverage, let me hit that first.
I think the really important point to make there is we think about advertising leverage, first and foremost, at the cohort level.
And so we provided some data in the most recent 10-K that shows how advertising expense per unit evolves over time within a cohort, which you also think about as within a market.
And what we've seen there is very steep declines in advertising expense per unit as markets age.
AdEx per unit starts high when we first launch our market and begin our brand advertising and begin raising awareness.
But then as that awareness grows, we see steep declines in advertising expense per unit, with Atlanta being the most mature market all the way down to $440 per unit in Q4.
So I think the -- when you're then kind of stepping up to the company level, what you see in a company level is a mix of more mature markets that have gone through that steep decline in advertising expense per unit as they've aged paired with new markets that tend to start at a higher advertising expense per unit.
And it's that mix that generates the company overall number, which of course, when you're opening a lot of markets can be relatively stable based on mix effects.
The other thing I would add there is that, although new markets are more expensive from an advertising expense per unit than more mature markets, we've seen very positive trends there in the first quarter advertising cost of new markets.
2017 was lower than any of the cohorts before it as we've presented in the 10-K, and then 2018 was lower still.
Ernest C. Garcia - Founder, President, CEO & Chairman
I would add to that.
I think national marketing is an exciting tool here because I think when you think about local marketing, if you double market, what you basically have to do you is you double your marketing spend and then you expect to see similar responses in the new markets to what you saw in the old markets.
When you move to national marketing, if you double markets, you then have this choice.
So I want a double marketing, which then kind of doubles marketing everywhere, or do I want to hold marketing flat, which then will lead to the same level of exposure in all the new markets but will decrease kind of the overall spend per sale.
And so I think that's sort of a network effect that's not unlike the inventory network effect that exists in our business as a result of our ability to access national markets.
So I think that's exciting, and I think that we'll continue to watch that and look at the sensitivity to national TV marketing over time and make the right decisions as we continue to learn more.
That's the same choice that we've got in inventory, and I think, yes, you asked a question about inventory.
There's no doubt that having the car a customer wants absolutely is a primary driver of converting any given customer.
And so having either a larger inventory or a more intelligently distributed inventory leads to more sales.
And so I think as it relates to more intelligently distributed inventory, we're leveraging all kinds of data from many different data sources, some of them external data sources and then many of them data sources of just all of our customers clicking around our website every single day, that are informing which cars we want to buy, where we want to buy and how much we want to pay for them.
And I think we're -- I do believe that we're exceptional at that.
And then as it relates to the number of cars that we put on the site, that's this question of, at any given time, are you going to leverage growth to push down turn time by holding inventory flat?
Or are you going to leverage growth to be a reason to grow inventory and increase conversion everywhere?
And over the last 12 months, for the most part, on average, we've roughly held inventory flatter and we've pushed turn time down significantly.
That's always a choice that we get to make.
And I think it won't be long until we get to a place where our turn time's inside the range that we wanted, and we'll start to just grow inventory continuously with demand, which I think will be an exciting time for conversion.
Mark Jenkins - CFO
And then, Sameet, just to answer the second question very quickly.
The biggest determinant of our marketing spend is the population that we're marketing to, which is obviously also heavily correlated with the number of markets that we're in.
Operator
Your next question comes from Gary Prestopino with Barrington Research.
Gary Frank Prestopino - MD
Most have been answered, but do you have the unique visitors -- average monthly unique visitors for the quarter?
Ernest C. Garcia - Founder, President, CEO & Chairman
It was 1.6 million.
And I think, in the shareholder letter, we also said that we crossed over 2 million in April, and that was up from 1 million 9 months prior.
Gary Frank Prestopino - MD
Okay.
And then just in terms of inventory, Ernie.
How much did you have to flex up your inventory here in Q1 to get into the spring selling season?
Or did you keep it flat with Q4?
Mark Jenkins - CFO
I mean, we definitely flexed up inventory in Q1 versus Q4.
I think that's something that we've done historically.
And I think that is commensurate with the increases in sales that we've historically seen when tax season hits.
And so we did grow inventory in Q1.
We did that while lowering average days of sales.
And that just corresponds to the big increase in the demand that we see starting late in Q1.
Gary Frank Prestopino - MD
Can you give us an idea of what your inventory is going into the quarter here?
Mark Jenkins - CFO
So we ended the -- we ended Q1 with just under $300 million in inventory on the balance sheet.
Gary Frank Prestopino - MD
Okay.
I'll get from units -- and then as you grow, have you considered taking advantage of the leading auction companies to do some reconditioning for you, especially in areas of the country where you might not have a presence within IRC?
Ernest C. Garcia - Founder, President, CEO & Chairman
Yes, we're doing that all internally.
We think that, that's important to control, the quality of the car.
And we've got a really strong process at our inspection centers when we get -- take a car in, stock it in.
We can go through and make sure that we've got all the right data about the car so we make sure that we can merchandise it properly.
We put it through our reconditioning standards.
We can make sure that we certify it to a level that we believe is a high enough level to put in front of our customers.
And then we're able to photograph as well for merchandising it.
So we think that's all important for us to control and so we're controlling all that today.
Operator
Our last question for today will come from James Albertine with Consumer Edge.
James Joseph Albertine - Senior Analyst of Automotive & Managing Partner
Wanted to ask -- and as well, congrats on the follow-on offering.
Wanted to focus on capital allocation here a little bit, if I may.
You did an acquisition here of Carlypso.
I'm curious how you think that's going to flow through, how we should sort of gauge the necessity in terms of timing and then the progress you're making in terms of integrating those benefits.
Where are we going to see that manifest itself, and how soon perhaps?
And then as well, as you're balancing growing into new markets, you're talking a lot about pinch points.
You're talking a lot about excess demand for where you have supply to fulfill.
And we're not seeing vending machines carry into every market you're opening, and you're obviously leveraging your national branding to some degree there too.
I'm just wondering, given it's one of your highest CapEx uses right now, does the ROIC that you're calculating on your vending machine additions necessitate further vending machine investment at this point?
Or is it better served to sort of utilize it elsewhere given the successes that you're having in large swaths of the country without a vending machine?
Ernest C. Garcia - Founder, President, CEO & Chairman
Okay.
So let's start with Car360 there.
So -- and you also mentioned Carlypso, so I'll briefly touch on that.
So Carlypso was the first acquisition that we did that was earlier in the year in 2017.
A lot of benefits of that are already flowing through, and as Mark brought up earlier in the call, one of the founders of Carlypso is now running our efforts to buy cars directly from customers and doing a great job.
So we're feeling really good about where we are there and how we've been able to integrate that.
We're definitely still working on many, many things that we expect to rolling out over time.
But in general, that's going very well, and we're very happy with kind of that partnership.
As it relates to Car360.
And Car360 built really pretty exceptional technology, and where you should expect to see that is just in enhancements to our vehicle player, where customers can go on our website, click on a car and then explore that car.
I'll just say when I got the demo from the first time, I laughed out loud because I thought it was so incredible, and my mind was spinning a million miles a second trying to figure out how they were doing what they were doing.
And we're really excited to integrate that technology and give that experience to our customers.
So that will take time because there are very many different levels of integration that we plan to do and many interesting functionalities that we expect to roll out over time.
I think we expect the first iterations and integration start to roll out toward the end of the year.
And then we'll be working as quickly as possible to continue to roll out more of the incredible technology they've built.
So I think we're very excited about that.
I'll let Mark come back around to talk about how that flows through the financials.
As with the vending machines, you're right.
We definitely do not have vending machines in all of our markets, and we're very pleased with the growth that we're seeing across the company in both markets with and without vending machines.
We do believe that we have excess demand today, and I think that's very exciting.
We also believe that vending machines continue to be very high ROI.
We feel that we can measure that ROI pretty surgically.
Because we put the vending machines on the ground, we see the changes to sales, we see the operational benefits that we get, we can quantify those and then put those up against kind of the cost to finance those vending machines through sale-leaseback arrangements that don't even end up tying up equity capital.
And the map remains very clear, and the response remains very consistent across many of those different markets.
So I would say we're feeling great about the core offering.
We're excited about the benefits of national marketing as we continue to leverage that more fully, and we continue to believe very strongly in the power of vending machines, and we'll keep investing in those.
Mark Jenkins - CFO
And then as it relates to Car360 in the financials.
So in terms of revenue, gross profit and OpEx, other than depreciation and amortization, the impacts would be immaterial.
There will be some additional depreciation and amortization associated with the acquisition and, we'll provide additional details on that in Q2.
James Joseph Albertine - Senior Analyst of Automotive & Managing Partner
I really appreciate the thoughtful answer.
And to the degree that you've shared data in the past on your market share and trajectory there, to the degree you're willing to share it on the ROI side, I think that can go a long way.
But I understand it's a trade secret.
But I do appreciate the comments.
Mark Jenkins - CFO
Thank you.
Ernest C. Garcia - Founder, President, CEO & Chairman
Thank you.
Operator
And this will conclude our question-and-answer session.
I would like to turn the conference back over to management for any closing remarks.
Ernest C. Garcia - Founder, President, CEO & Chairman
Thank you, everyone, for joining the call.
We had a great quarter, much more importantly, the pieces are in place for a bright future full of great quarters.
Thanks to everyone at team Carvana for everything you do every day.
All companies are nothing more than a collection of people working toward a common goal, and I'm proud to be part of this collection of people to share with you all the missions to change the way people buy cars and to be succeeding and fulfilling that goal to the degree we are.
Thank you.
Operator
The conference has now concluded.
Thank you for attending today's presentation.
You may now disconnect.