Same discussion as always...but anyway fact is that previous generation M5 was the class leader from the day it was introduced till it´s last day. There were other super sedans with more power in it´s last years but that doesn´t mean they took the crown away from the M5 (more than proven fact by endless respectable car magazines) so I really don´t understand why the E65 and upcoming RS6 are such a big issue when everyone knows that even if they have more power they almost certainly won´t be the best overall car.
As I always say, to each his own but to me BMW is the driver´s choice, then Audi which is a nice car IMO and then Merc who can only bragg about power about straight line speed.