Audi has revealed its TT clubsport turbo concept, which is set for a Worthersee festival debut. Austria's annual meeting for Volkswagen Group enthusiasts will get the first glimpse of the 'colossal' 600PS machine, which is powered by 2.5-litre engine and a 'close to production ready' electrically powered biturbo compressor - which revs up to maximum rpm rapidly, without delay. With 650Nm of torque on tap, 0 to 62 takes just 3.6 seconds and top speed comes in at of 192 mph.