If you're trying to assess whether a car is a good purchase, Bumper is a good place to start. It offers detailed vehicle history reports and VIN decoding to help you evaluate a car. With information on accidents, salvage and theft, title and lien history, and AI-powered insights, Bumper offers a wealth of information about a car's history. It also offers a free VIN decoder and mobile apps so you can use it on your phone.
Another option is MechanicBotAI, an AI-powered tool that can diagnose car problems in as little as 30 seconds. It's geared more for diagnosing problems than for assessing a car's overall health, but it can be useful for spotting problems that could affect a car's performance or maintenance needs.
If you're looking for something more comprehensive, Solera offers a collection of automotive software tools for dealerships, insurers and repairers. It's more focused on running a dealership or repair shop, but it has a massive database of repair orders and AI-powered workflows that can help you assess the maintenance and repair history of a vehicle. That can be useful for deciding whether to buy.