What is a certified pre-owned car?

A certified pre-owned (CPO) car is a used vehicle that has passed an inspection and comes with an extended warranty and other benefits backed by the manufacturer or, in some cases, the dealer. Manufacturer CPO programs typically have age and mileage limits and specific inspection checklists. CPO cars usually cost more than non-certified used cars. Ask who backs the certification, what the warranty covers, and for a copy of the inspection report.