German Autohaus of Chattanooga is the areas premiere European car service, maintenance, repair, parts and performance facility for VW Volkswagen, Audi, Bentley, Porsche, Lamborghini, BMW, Mini, Mercedes-Benz and Volvo vehicles. German Autohaus of Chattanooga is the areas premiere European car service, maintenance, repair, parts and performance facility for VW Volkswagen, Audi, Bentley, Porsche, Lamborghini, BMW, Mini, Mercedes-Benz and Volvo vehicles.