How we know
Every line on the report can be checked.
Buying a used car is stressful enough without wondering if the data is real. Here is what powers every EstimateProof report and where you can verify it yourself.
Vehicle history: NMVTIS
EstimateProof pulls from the National Motor Vehicle Title Information System (NMVTIS) — the same federal database that insurance companies, lenders, and dealers use. Title brands (clean, salvage, rebuilt, flood, junk), odometer readings, lien records, and theft/recovery status all come from official state DMV and insurance data feeds.
Recalls and complaints
If a recall is on the report, it is a real campaign on file for that exact VIN from the NHTSA federal database. Complaint patterns come from actual owner-filed reports to federal regulators — we analyze what other owners of the same year/make/model reported at your mileage range.
You can verify any recall campaign number on the NHTSA website yourself. We do not fabricate or pad the list.
Failure patterns at your mileage
When other owners of the same vehicle report problems to federal regulators, we analyze the patterns at your mileage range. That is how we surface insights like “this transmission tends to start hesitating around 80k.” It is based on actual reporting history, not guesswork.
AI repair cost estimate
EstimateProof uses AI to predict what repairs are likely at that mileage and estimate the cost range for your area. The cost range is informed by regional averages — not a binding quote. Use it to negotiate with a seller, get a sense of the true cost of ownership, or decide whether the car is worth the asking price.
The report explicitly states that the final price depends on an in-person inspection. This is a starting point for an informed negotiation, not a replacement for a mechanic looking at the car.
Dealer listing analysis
If you paste a dealer or marketplace listing URL, EstimateProof scrapes the listing details and cross-references them with the VIN data and repair estimates. We flag discrepancies between what the seller claims and what the data shows, and calculate a recommended offer price based on the vehicle's actual condition.
What we don't claim
- We don't replace an inspection. EstimateProof gives you a data-backed starting point. A physical inspection is always the final word.
- We don't pull live parts pricing. The cost range uses regional averages, not a real-time supplier lookup.
- We don't guarantee 100% accuracy. Title data comes from official sources, but no database is perfect. If something looks off, investigate further before buying.
- We don't do service records. EstimateProof focuses on title history, safety data, and repair cost intelligence. We don't track oil change history from participating shops like Carfax does.
Ready to see what the data says about the car you're looking at?
Run a Report — $25