I don't think it ever came with AMG badging, that was something people added. My dad had 2 of them in a row, then when the 55's came out he got one of those for 2 years as well. They are totally different cars, and the engine is only part of it, the suspension is MUCH MUCH different as well. The 430 just has the AMG bodywork and wheels, but is not considered an "AMG car"