Originally Posted by
vaughant
But compared to the equivalent petrol that's pretty good.
I'd guess the m5's doing about 5-6mpg flat out if that and this has equivalent torque(700 nM).
Nobody buys a big Beemer and expects good economy,but realistically this thing in normal driving will be no worse on fuel than a 320 petrol which is impressive for a big lump.
But for the price you are paying you could have a decent petrol version and save thousands on the purchase price which negates the fuel savings. It's. Certainly not a diesel m5 either so that's not a consideration. I would say a 535 msport would save you a shit load of cash and be as quick in real life.