You could take a look at this website if you are thinking of buying a car or maybe selling yours. On this site you will be able to submit your search and find the most convenient deals on used cars for you, or sell your car by placing a free ad.
On Freebo.com there are plenty of online listings of used vehicles for sale by owner. Here you will be able to search for vehicles by make (BMW, Chevrolet, Dodge, Fiat, Ford, Honda, Mazda, Peugeot, Toyota, and many more), by model, by maximum price, and by region. For each vehicle you can find descriptions of features, specifications, photos, a loan calculator and a form to send a message to the seller.
As mentioned before, here you also can place your free ad.
In addition, on this site you will find articles and videos with tips for buyers and sellers.