AutoNation, Inc., through its subsidiaries, is the largest automotive retailer in the United States. As of December 31, 2018, we owned and operated 326 new vehicle franchises from 239 stores located in the United States, predominantly in major metropolitan markets in the Sunbelt region. Our stores, which we believe include some of the most recognizable and well-known in our key markets, sell 33 different new vehicle brands. The core brands of new vehicles that we sell, representing approximately 92% of the new vehicles that we sold in 2018, are manufactured by Toyota (including Lexus), Honda, Ford, General Motors, FCA US, Mercedes-Benz, Nissan, BMW, and Volkswagen (including Audi and Porsche). We also own and operate 85 AutoNation-branded collision centers, and together with our vehicle dealerships, our AutoNation USA stores, and our automotive auctions, we owned and operated over 325 locations coast to coast.
We offer a diversified range of automotive products and services, including new vehicles, used vehicles, "parts and service" (also referred to as "Customer Care"), which includes automotive repair and maintenance services as well as wholesale parts and collision businesses, and automotive "finance and insurance" products (also referred to as "Customer Financial Services"), which include vehicle service and other protection products, as well as the arranging of financing for vehicle purchases through third-party finance sources. The following charts present the contribution to total revenue and gross profit by each of new vehicle, used vehicle, parts and service, and finance and insurance sales in 2018.
We were incorporated in Delaware in 1991. For convenience, the terms "AutoNation," "Company," and "we" are used to refer collectively to AutoNation, Inc. and its subsidiaries, unless otherwise required by the context. Our store operations are conducted by our subsidiaries.