Kicherer certainly outdid themselves this time. With a new tuning program for the Mercedes CLS 500 called the "Big Black One", the German tuning company has given us the full breadth of what the CLS is capable of. It’s got a cool nickname that immediately grabs your attention and a look that adds some aggression, but the best part is that it’s got pretty nasty performance upgrades that should make it more imposing than it already is.

On it’s own, this Mercedes already packs quite a mean punch, thanks to a 4.6-liter V8 engine that produces an output of 402 horsepower and 443 lb/ft of torque. But thanks to a software update and the addition of a new sports exhaust system, Kicherer was able to bump up the output to 463 horsepower and 509 lb/ft of torque.

Source: topspeed