Most people are aware that a car will have a warranty that protects the buyer against various types of breakage and wear, but unless a car has been deemed inoperable or dangerous under California Lemon Law, the warranty probably doesn't cover everything that an owner would think it does. For example, many warranties become null and void after a certain amount of time but the warranty might actually expire far sooner if a person happens to put a significant number of miles on the vehicle. Different car manufacturers offer different warranties so these numbers are generally always different.