One of the reasons I stuck with my slow deisel for such a long time. Its 240bhp and if I stick to 60mph I get 60mpg on the computer quite easily. Driving it at normal motorway speeds i.e. 70 I still get 55mpg on the computer. Thats not bad going for a car with 240bhp and 380lb/ft of torque.You almost have to give up any aspirations for mpg when you get these cars. They're much better than the predecessors of 20 years ago for cars that would have offered 300bhp (probably all single digit MPG's back in the early 90's for this level of performance).