Volkswagen Group of America, Inc. (sometimes referred to as Volkswagen of America, abbreviated to VWoA), is the North American operational headquarters, and subsidiary of the Volkswagen Group of automobile companies of Germany. VWoA is responsible for five marques: Audi, Bentley, Bugatti, Lamborghini, and Volkswagen cars. It also controls VW Credit, Inc. (or VCI), Volkswagen's financial services and credit operations.