I heard the video, a few times actually, and I too agree that the PROTOTYPE exhaust sounds horrible. Then again, thats why it's the PROTOTYPE.. remember, for those of us who followed the F10 M5 build and release, the spy videos around the ring made the car sound like shit... recent videos/pictures/sound clips prove otherwise... I'm sure we'll all say something different once we test drive it and/or see it on the road for ourselves when it hits the streets of America.
Current: '15 Yas Marina Blue F82 M4 Coupe/Loaded with no CCB
Gone: '11 E92 335is DCT Blk Sph /Oyster/Every Option
Gone: '05 E46 330iZHP Jet Blk/Natural Brown Too many Mods to list.