Why would someone want to upgrade a 451HP Mercedes-Benz C63 AMG remains a mystery to us, but the following car is a good example of the level of performance a C63 AMG can reach with the right aftermarket parts and some very deep pockets. Two years ago, owner Keith Brantley got in touch with aftermarket specialist Modern Horsepower (MHP) and ordered a complete transformation of his C63 AMG.

Source: Carscoop Tuning