depends on the time you have. If need to do quickly and it is a late model, 2000 or newer, then go to a CarMax store. Other national used car sales companies also will buy your car even if you do not buy another vehicle. type of car is a big factor, generally the more "special" the car is, the easier to sell. Also contact everyone you know and who know the car and how you have treated it and inquire if they or someone they know is looking for a vehicle. another choice, keep the car and ship it to wherever. a year ago I shipped a car from Portland, Ore to Chicago for about $1200.00 delivered to my door in an enclosed van. Probably more now with fuel prices up, BUT diesel fuel prices are actually down right now because refineries are not making fuel oil for home heating = more diesel = too much supply= lower price.