The Audi TT offroad concept breaks the mould, combining the visual and dynamic appeal of a coupe with the practicality and adaptability of a compact SUV. The four-door model, which Audi is presenting at the Beijing International Automobile Exhibition, adds an entirely new dimension to the Audi design language. Its plug-in hybrid drive with two electric motors and a system output of 408PS ensures that it can deliver in performance terms while also potentially returning in excess of 148mpg.