If you are about to sell your used car and thinking that how to sell it, should I advertise in some magazine or newspaper or ask some agent to sell it then you are going in a wrong way because in all these options you have to pay a good money but if you can advertise free then why we should go for paid ads. For free advertisement for your used car you have to just give all the details of your car with price on the website of the automotive dealers who provides the free advertising.