Usa-Places.com has listed approx 12 Used car dealers in Frederick. Some of the Top rated Used car dealers in Frederick are- Motorworld, Frederick Auto House Inc, DARCARS Used Car & Service Center of Frederick, Automax of Frederick, The American Motor Company, DRIVE INVESTMENT GROUP | The POLICE Fleet HQ, J R Motors, Serenity Auto Outlet, Linac Auto Used Cars & Neutron Auto Sales.