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The Math

The math of getting ripped off.

The numbers behind the worst hour of car-buying — and what one clean report actually looks like.

Public methodologyEvery number traces to a source
The Math Of Getting Ripped Off

What the average buyer overpays — without ever knowing.

Three figures, one public dataset of roughly 3 million add-on products, named below. Every figure traces to a source we can name. No invented scoring.

325%

Average dealer markup on vin etching — a service that etches the VIN onto the glass, sold in the finance office after you have agreed on the car.

National Consumer Law Center · Auto Add-Ons Add Up · 2017

83%

average dealer markup on service contracts

National Consumer Law Center, 2017

151%

average dealer markup on gap

National Consumer Law Center, 2017

What you see vs. what’s real

2024 Honda CR-V EX-L · from our sample report

Dealer showed$35,500
Real out-the-door$39,509
Sample reports, real verdicts

Three cars. Three verdicts.

What the product actually tells you • across the verdict range.

Illustrative

2023 Toyota Highlander XLE

Asked: $42,500 • Offered: $41,200

82/100
BUY

“Market value aligned, fees standard, APR competitive. Confident signing deal.”

Illustrative

2024 Honda CR-V EX-L

Asked: $35,500 • After Carlarity: $32,653

Saved: $2,847

64/100
ADJUST

“Doc fee inflated, APR 0.8% above tier, paint protection removed. Three levers.”

Illustrative

2023 Ford F-150 Lariat

Asked: $54,900 • Fair value: $48,200

31/100
WALK

“Price $6,700 above midpoint, 9.4% APR predatory for credit tier. Walk away.”

Illustrative examples. The deals, prices and savings shown are invented to show what a report says — none is a customer’s deal. Real customer reports remain private.

What we believe

Buying a used car shouldn’t require a weekend of spreadsheets.

It shouldn’t require a friend in finance, three trips to different lots, or a stomach for confrontation. It should require a report.

Carlarity was built to close the information gap at the dealership desk, using the same data the dealer already has — VIN history, market comps, standard-rate lending, and a checklist of the things that quietly cost buyers money. We don’t get paid by dealers. We don’t sell cars. Every report is built for one person: the buyer.

— The Carlarity Team

Ready to see the math on your car?

Every figure in your report names its source. In-minutes turnaround. 30-day refund if it doesn’t help.

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