Watch Used Cars (1980) HD Full Movie Free on SolarMovie. Watch Used Cars (1980) online free. When the owner of a struggling used car lot is killed, it's up to the lot's hot-shot salesman to sav...When the owner of a struggling used car lot is killed, it's up to the lot's hot-shot salesman to save the property from falling into the hands of the owner's ruthless brother and used-car rival.