When buying a used car, be very careful about how clean the car is. Many car salespeople have professional cleaners who can make a piece of junk look brand new. Always get the car checked by a mechanic. Even if it looks fantastic, a mechanic will be able to spot any major issues.
Think ahead when you are planning on making a car purchase. Do not make the mistake of buying a car without thinking about whether it would be practical for future use. Buying a sports car will not make much sense if you are planning to have a family anytime in the near future.
You may be at the car lot for a good amount of time when trying to buy a car. You don't want to be rushed so you act on a deal that doesn't really make you comfortable. Keeping an afternoon open entirely is best. If you are really short on time, do not be afraid to leave and come back another day.