Manheim is a wheeler dealer from way back that trades cars like stocks. With about 100 locations worldwide, the firm is the nation's largest wholesale vehicle auction company. It remarkets automobiles for wholesale consignors, including car dealers and makers, rental-car and fleet companies, and financial institutions. (Typically, licensed franchise and independent car dealers buy Manheim's vehicles.) The firm conducts both physical and online auctions and offers auction-related services, as well, such as reconditioning, wholesale inspections and certifications, and used-car valuation. A subsidiary of Cox Enterprises, Manheim (formerly Manheim Auctions) was founded by four colleagues in 1945.