Home › Top 4 Car Dealers in Grass Valley, California Find best Car Dealers in Grass Valley, California, with all necessary contact information, including addresses, phone numbers, working hours, map locations, and website links. Mcmillen's Gold Country Motors US, Grass Valley, CA 959451655 E Main St DeMartini Auto & RV Sales US, Grass Valley, CA 959451305 E Main St Pioneer Motors US, Grass Valley, CA 959451611 E Main St Autovalue US, Grass Valley, CA 95945653 Maltman Dr Suite E