I worked at a mercedes dealership for about 2 1/2 years. I always got to test out the new toys. Just before, I left. I drove a 2k4 E55 AMG. It was 130k. Oh man was that thing fast! The tires couldnt even hold it in a straight line. The traction control light would come on.
So, yeah dont mess with benzos that say AMG. Even the newer mercedes without the amg are pretty damn fast.