Developing a maximum output of 420 bhp, the V8 revs up to a speed of 8250 rpm. With its displacement of 4163 cc, this outstanding engine exceeds the magical barrier of 100 bhp per litre truly outstanding in a production saloon. Maximum torque of 430 Nm comes at 5500 rpm in this very compact engine, with 90 per cent of the engine’s torque consistently available between 2250 and 7600 rpm.