when you go to look at it check everything out. I usually check that windows roll up and down, start the engine and listen, check brakes, take it for a test drive and do some slow 360s at full lock both directions to see if axles are going, shift through gears, and check for fluid leaks, those are the main things i usually check when Im looking at the car. a car fax may tell you things you wouldnt be able to tell by looking at the car but not necessarily that the car is a bad buy.