I test drove CLS63 2012 launch limited edition model sticker price 122k when I had E550 coupe 2010 and expected to be pleasantly surprised but my butt dyno didn't feel much difference whike when test drove the M5 then I was pleasantly surprised!!
So M5 all the way!
But haven't test driven the AWD so can't speak to that sir...
M5 does suffer from RWD but does shine at times because if it too ... for M5 RWD has become a 2 edged weapon -
