In the Unite States, a car dealership is a retailer that sells new and/or used cars. Used car dealerships carry cars from many different manufacturers, while new car dealerships are generally franchises associated with only one or two manufacturers. However, in some areas, dealerships have been consolidated and a single owner may control a chain of dealerships representing several different manufacturers. New car dealerships also sell used cars, as they take in trade-ins and/or purchase used vehicles at auction. Most dealerships also provide a series of additional services for car buyers and owners, which are sometimes more profitable than the core business of selling cars.