Trading-in Your Used Car
Do not expect to get the full retail value of your used vehicle when you trade it in, the car dealer will only offer you the 
wholesale value. The amount you should receive on trade-in will be between the wholesale and the average retail prices of your car make and model. If you can not negotiate a favorable deal on your trade-in there are other options.
The condition of your trade-in and market demand will also determine whether or not you get a good deal. If you are unsuccessful at negotiating a price that you are happy with for your trade-in, consider either trading elsewhere, wholesaling it yourself, or selling it privately through an ad in the local paper, or with an online auto classifieds.