Do not buy a car just because it is a good deal. You have to live with this car after you take it home, so it needs to be something that you really like and that works for you and your family. You also need to make sure you can really afford it. Learn about the true market value of the car before making an offer. Oftentimes, dealers will have the car marked up a certain percent over the value so they have some wiggle room. If you know the market value, you can better haggle with them about the price you will pay out the door. If you are going to be purchasing a used car, one of the top things you should be looking at is the mileage of the car. As nice as a car may be, if it has 150,000 miles on it already, you probably will not get much use out of it.