You have decided that you want to buy a new car but it comes with the difficult decision that you will have to sell your old car. This may be the first car you ever owned that you took with you to study at college or it is simply your pride and joy that you have taken care of like a baby since you bought it. Post free ads will be the most logical way to reach your potential buyers but there are a number of other things to keep in mind as you prepare your car for sale to enable you to get the most out of it to put towards the purchase of that next car of your dreams.