Inspect a vehicle carefully, take your time. It's a good idea to bring a friend who is more familiar with cars. If possible, come earlier than your appointment and check the vehicle when it's started cold. As a final step, bring the car to the mechanic of your choice for an inspection. Sometimes you can find a mechanic who can come with you to the dealer and inspect the vehicle on-site. Another choice is to arrange with the dealer to bring the vehicle to an auto repair shop or another dealer of your choice for an inspection.