Audi unveils 2013 TT Ultra Quattro Concept at the 2013 Worthersee Festival that’s lighter and more potent
Audi seized the opportunity at the 2013 Worthersee Festival in Austria, a major Volkswagen and Audi gathering for enthusiasts, to unveil an even harder and faster version of its TT sports coupe. The result: the 2013 Audi TT Ultra Quattro Concept, a car that carries the mission of being the lightest and most potent Audi [...]

