From what i know, AMG cars are cart on the track when compared with M cars and Audi's RS range.
Last time i checked on about 65 Series AMG, it handled bad. Black Series is more like visual-wow-factor rather than proper engine tweaks. 7:36 for SL means its faster than a 911 Turbo, WHICH i highly doubt! =p
Like i always say..
Anyone can drive a Merc, real men drive BMW! right ateekt?