Mecedes E63 AMG
What better to follow the M5 than one of its two main rivals, the Mercedes-Benz E63 AMG (Or E55 depending on what year) with its AMG built 5.5L twin turbo V-8 rated at 570hp. Mercedes always seemed to lean a little more towards the luxury side of things versus the performance and handling categories but that has slowly changed. They now have some of the most powerful cars on the road.