Buying a used car can either be a fun or nightmare experience, depending on your point of view. How much you know about the used car buying process will also dictate whether you have a good or bad experience. You would think that buying a used car is a pretty painless experience. After all, you find the car you want, and you pay for it, right? The ugly truth about buying used cars is that there is always someone out there that wants to scam the unsuspecting public.