The 2014 Audi A6 is a mid-size luxury sport sedan that offers strong performance while also delivering all-weather confidence and good gas mileage.. The title check is an important part of the pre-owned buying process. And this car has it. CarFax says is accident free and comes with a CarFax Buy Back Guarantee. This baby is going to fly off the lot at this price. Ride in style with this vehicle's fabulous leather seating. Premium 'turn-by-turn' navigation system included. You'll also love this A6's heated seats, a sunroof, EPA estimated 22 MPG combined fuel rating, backup camera and power mirrors.