Quote Originally Posted by GTspirit.com
Mercedes-Benz is offering a new package for the C 63 AMG, called Performance Package Plus. The package increases the output by 22kW/30hp to 358kW/487hp approaching the level of performance offered by the C-Class DTM racer.

With the Performance Package Plus, the C 63 AMG accelerates from 0 to 100km/h in 4.4 seconds and 0 to 200km/h in 13.9 seconds. The standard model is beaten by up to 1.2 seconds (0–100km/h: 4.5 seconds; 0–200km/h: 15.2 seconds). The top speed is a limited 250km/h.

The improvements are achieved by changing the AMG 6.3-litre V8 engine. Forged pistons adopted from the new SLS AMG super sports car together with new connecting rods and a lightweight crankshaft save up to three kilograms. By reducing the inertia the agility and responsiveness of the uprated V8 engine is boosted. New engine management completes the powertrain adjustments.

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