Welcome to the Audi Exchange one of America's premier marketers of high-line and luxury automobiles. This vehicle has all of the right options. Prestige with Navigation, Bose Sound System, Front Seat Ventilation, Rearview Camera and Cold Weather Package. 100% CARFAX guaranteed!. At Audi Exchange, we strive to provide you with the best quality vehicles and this A6 is no exception. Accident-free car fax report. Factory-Backed Warranty with coverage for 5 years or unlimited miles. Audi Certified Pre-Owned Warranty included and additional factory warranty at no extra cost. Balance of Audi Care Maintenance Included 45k service Free of Charge.