Guides

Short, practical explanations of the numbers you see on every car page: how to check a specific car for open recalls, what an owner complaint count does and doesn't tell you, why EPA MPG and real-world MPG differ, and how to read NHTSA crash-test stars. They're written for buyers, not engineers, and each one links to the tools and data that put it into practice. For how every figure on the site is calculated, see our Methodology.

New to car shopping? Read the recall guide first — an open recall is the one problem a dealer must fix for free — then the complaints guide, which explains why the most popular cars always seem to have the most reports. If you're weighing a hybrid or an EV, the fuel economy guide shows how to turn EPA numbers into a yearly cost for your own driving. And before any test drive, the crash-test guide explains what NHTSA's stars measure — and what they leave out. Every guide is written from the same public data used across the site, and none is sponsored. We update them when the underlying rules change, for example when NHTSA revises its crash-test program. Have a question a guide should answer? Let us know.

Prefer to jump straight to the data? Every model page links to its model years, and every model year shows its recalls, owner complaints, crash-test stars, fuel economy, trims and dimensions in one place.