Occasionally, there are unexpected bumps in the sale process that arise. These will be handled easily if you are dealing with a reasonable person. So, as you are contacted by prospective buyers, use your intuition to evaluate them. If they seem difficult, pushy or even shady, wait for another buyer. With the right person, selling a used car should be simple and easy. Make sure you did everything correctly and you can sleep with ease knowing you've sold you car in the correct manner.