Used Car Scout

What the creator says it does

• Finds reliable used cars near any US ZIP code and reports which ones are worth a look, with estimated miles left, distance and a confidence rating.
• Works for any make or model: it searches all makes by default, lifespan estimates cover most makes, and brands without lifespan data are still shown, labeled as such.
• The radius defaults to 50 mi and the miles-left minimum to 50,000; both are optional.
• Report-only: it never contacts sellers or buys anything.

From the creator's listing. We haven't tested this yet.