The 6-Day Turn:
I Built the Software Myself
Industry recon runs 12 to 21 days. This lot runs 6. The gap is a system, and the system transfers to a 1-rooftop store.
A car on your lot is not inventory. It is an invoice that reprints every morning.
Holding cost runs $32 to $40 per vehicle per day, per AFC. The industry recon cycle averages 12 to 21 days, per Carketa. Take the middle of both: $36 a day across 16 days is $576 per car. Independent dealers average about $1,500 in front-end gross per used unit, per ACV Auctions. On those numbers, recon lag consumes 38 percent of the gross before the car takes its first photo.
Now price it where this lot operates. 280 exotic vehicles a month at a $289,000 average unit — more than $80 million sitting on the ground at any time. At 7 percent money, one car bills about $55 a day in interest before insurance, before detail, before the square footage under it. A 21-day recon on that car is $1,164 in interest alone. Nobody approves that spend. It approves itself, one quiet day at a time.
$32–$40
Per vehicle per day in holding cost (AFC)
12–21
Industry recon days average (Carketa)
6 days
This lot's average turn across 280 cars/month
$576
Carry cost per car at the 16-day midpoint
The Industry Numbers
The averages are public. Recon runs 12 to 21 days across the industry; top performers get under 7, per Carketa. Rapid Recon sets the target at 3 to 5 days and reports that cutting 2.5 recon days adds a full extra inventory turn per year. The cost of waiting rose while the clock stood still: net floorplan expense climbed 39 percent year over year, to about $139 per unit, per Harney Partners.
And the tooling underneath? Many independents run recon on spreadsheets, whiteboards, or text threads, per Carketa. The whiteboard is free. The days it loses are $32 to $40 each.
What I Watched on My Own Lot
The lot covers 70,000 square feet. We land 120 vehicle transporters a week and route work across 15 service categories: mechanical, PPF, paint correction, wheels, interior, detail, and the rest.
Before the system, status lived in three places: a whiteboard, a group text, and someone's memory. A car sat marked "in detail" for 3 days that detail never received. A vendor waited on an approval that had been given, verbally, to a different person, the day before. "Where is the 812?" got asked 6 times before lunch and answered two different ways. None of that is negligence. It is what 280 cars a month does to a process with no single source of record.
On a $28,000 sedan, a lost day rounds to nothing. On a $289,000 car, a lost day is $55 in interest plus everything stacked on top, multiplied across every unit on the ground.
Why I Did Not Buy a DMS Module
I priced the shelf first. The billing pattern in DMS software is documented: one store believed it paid $525 a month for its system and found itself billed $937 a month after add-ons, per DealerClick. That is a 78 percent gap, discovered on an invoice instead of in the demo.
The fit was wrong before the price was. Those modules are built for franchise stores turning $28,000 sedans at volume. The constraint set here is different: $289,000 average units, 120 transporter handoffs a week, 15 service categories, and a chain of custody that has to survive an insurance claim.
So I wrote a spec. I build systems — 26 years of them: 1,586 retail stores, an Amazon delivery operation graded 99.8 percent on-time. Not a career programmer. An operator who writes exact requirements. I directed AI coding agents from those written specs, with acceptance gates: a feature ships when it passes the gate, not when the code looks finished. The output is DRX Lot Assistant™: a full-stack progressive web app, React and TypeScript in front, Node and PostgreSQL behind, role-gated so a porter, a vendor, and a manager each see their own lane.
What the Software Does, in Plain Words
Intake
Every car checks in once, with photos and a four-view damage diagram: front, rear, left, right. Condition at minute zero becomes a record, not a memory.
Diagnosis
Each car gets a work plan across the 15 service categories. Every line has an owner.
Vendor Assignment
One vendor, one job, one clock. The clock starts at acceptance.
Turn Tracking
Every unit shows its age in days, and every day is charged to a stage. No car is simply "in recon." It is on day 2 of paint correction, and paint correction can see that.
Release
No vehicle moves without a chain-of-custody bill of lading signed at the transporter handoff, with the same four-view diagram. 120 transporters a week means 120 signed records a week. Damage disputes end at the diagram.
One Writer Per Record
The rule that kills the spreadsheet. Two people cannot hold the pen on the same car. Status changes once, by its owner. Everyone else reads.
The Result
Industry average: 12 to 21 days. This pipeline: 6-day average across 280 vehicles a month.
Against a 16-day midpoint, that is 10 days returned per car. At $32 to $40 a day, call it $360 per car in carry avoided, before the interest math on a $289,000 unit. Rapid Recon's data says 2.5 days recovered adds one full inventory turn a year. This pipeline recovered 10.
What to Take If You Run 1 to 3 Rooftops
Not the app. The system. Five rules transfer at any scale.
Price the day
Compute your per-day holding number: interest plus insurance plus rent, divided across units, or start from the $32 to $40 range. Post it where the team works. A day with a price on it gets defended. A free day gets spent.
One writer per record
Software optional, rule mandatory. One person owns each car's status at any moment. Group texts fail because everyone writes and nobody owns.
Put a clock on every stage
Intake, diagnosis, assignment, work, release: five stages, five owners, five timestamps. You cannot shorten a stage you never timed.
Document every handoff
Four views, signed, every time the car changes hands. On high-value units, one settled damage dispute repays years of the habit.
Write the spec before you buy or build
One page per workflow: who touches the car, what they record, what releases the next stage. If a vendor demo cannot run your page, you learned that for free. If you build instead, the pages are the build plan.
A 40-car lot obeys the same physics as a 280-car lot. The invoice reprints every morning either way.
Walk Your Pipeline Against These Five Rules
A small number of conversations are open for dealers running 1 to 3 rooftops who want to map their recon workflow end to end, identify the stall, and leave with a written spec. It starts with a free 15-minute Fit Call — we decide together if it's a fit.
Sources
AFC — autofinance.com/insights/how-to-cut-reconditioning-time
Carketa — carketa.com/dealership-recon-software-vs-spreadsheets
Rapid Recon — rapidrecon.com
ACV Auctions — acvauctions.com/blog/car-dealership-profit-margin
Harney Partners — harneypartners.com/floor-plan-financing-for-auto-dealers
DealerClick — dealerclick.com/blog/true-cost-of-dms-software
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