Discover our vehicles for sale in Southborough at Long Cadillac. Our Cadillac dealership near Boston, Worcester and Newton stocks a hand-picked inventory of quality vehicles with a variety of exterior colors, trims and accessory features. Our showroom offers new and Certified Pre-Owned Cadillac cars and SUVs to drivers throughout Massachusetts. We have plenty of financing options available for buyers in many credit situations, so make sure to call to schedule a test drive.