Used-car buying resources

Tools, checklists, and comparison pages before you buy.

Start with a free triage tool, compare VIN report options, then buy the full EstimateProof report when you need a clear buy / skip / negotiate decision.

Free tools

Free used-car tools VIN Risk Score Repair Cost Estimator Flip Calculator Dealer Margin Calculator Used Car Buying Checklist Flood Car Checker

VIN report comparisons

Carfax alternative AutoCheck alternative Carfax vs AutoCheck Best VIN check services

Buyer guides

Questions to ask before buying a used car How to avoid buying a flood car Used car inspection checklist Used car red flags How to negotiate used-car price