OK, I was going by the section 3.1 Future developments / R8 e-tron which states: "It produces a total of 317 PS (233 kW; 313 bhp) and a sceptical 450 newton metres (332 lbf·ft) of torque." 

 http://en.wikipedia.org/wiki/Audi_R8_(road_car)#R8_e-tron