I have driven the M5. While it is a fine car i believe that BMW has gone soft. I mean if the m5 motor was as efficient as the M3 it should be producung approx 365kw and not the 300kw as currently. secondly, its too fat. If i want a luxury car then i buy an s class or 750i. By ditching all the leather, wood , sat nav ect they should be able to shave at least 200kg off the weight. it would then have a power to weight ratio of between 4 and 5. This my friends would a serious machine in the true german spirit.