Funny reading the comments of the guys on the site the video was posted...When BMW fans brought up the displacement difference between E60 M5 (5.0l) and E63 (6.2l), M3 (4.0l) and C63 (6.2l), we where making excuses and being

. Now we are more or less comparing apples with apples and look who's doing the

now. Yes the Porsche is much faster, but its not competing with the M5, its way more expensive. The fact that Merc finds the need to be offering performance packs for their cars, well, says it all doesn't it.