The All-Time Greatest Audi Road Car Could Sell For As Much As $500,000Tom McParland12/19/14 10:11am377EditPromoteGo to permalinkAre you car shopping for a special gearhead this holiday? Forget about new, they'll just complain about depreciation. And don't get something too flashy, they won't like the attention. You want to find something unique, but still has serious performance credentials. You want a Sport Quattro.