Daimler released details with a new performance package available for the Mercedes C63 AMG that will offer improved appearance and performance. The Mercedes C63 AMG Performance Package Plus increases the sport sedan’s standard output with 30 HP (22 kW) bringing it to a total 487 HP (487 kW)and enabling it to accelerate from 0 to 100 Km/h in 4.4 seconds.
The Mercedes C63 AMG Performance Package Plus increases the level of performance bringing it closer to the C-Class DTM vehicles, with no less than 600 Nm of torque developed by the 6.2-litre V8 engine.
Also as an interesting fact the Mercedes C63 AMG equipped with the Performance Package Plus takes 13.9 seconds when sprinting from 0 to 200 Km/h, making it 1.2 seconds quicker than the C63 AMG version.
Interior enhancements featured in the Mercedes C63 AMG Performance Package Plus include a sport steering wheel and fine Alcantara leather.
The Mercedes C63 AMG Performance Package Plus price for the sedan model is 7080.50 Euro and 6426 Euro for the estate.
Mercedes press release :
Affalterbach – Enhanced driving dynamics ex factory for the Mercedes-Benz C 63 AMG: the new Performance Package Plus is an attractive optional extra that is designed to appeal to the power-hungry sports driver. The Performance Package Plus increases output by 22 kW/30 hp to 358 kW/487 hp. As a result, the C-Class approaches the level of performance offered by C-Class DTM vehicles, which deliver 377 kW/500 hp. The Performance Package Plus is available for the saloon and estate models and includes an AMG high-performance braking system featuring composite technology on the front axle, a carbon fibre spoiler lip (saloon) and an AMG performance steering wheel in nappa leather/Alcantara.
With the Performance Package Plus, the C 63 AMG accelerates from 0 to 100 km/h in 4.4 seconds and 0 to 200 km/h in 13.9 seconds. This beats the 336 kW/457 hp standard model by up to 1.2 seconds (0–100 km/h: 4.5 seconds; 0–200 km/h: 15.2 seconds). The top speed is 250 km/h (electronically limited).
The improvement in power output to 358 kW/487 hp is due to the AMG 6.3-litre V8 engine’s modified engine compartment: the forged pistons adopted from the new SLS AMG super sports car together with new connecting rods and a lightweight crankshaft translate into a weight saving of three kilograms. Reduced inertia boosts the agility and responsiveness of the uprated V8 engine, which is recognisable from the variable intake manifold painted in titanium grey. New engine management completes the powertrain measures in the Performance Package Plus for the C 63 AMG.
Key data at a glance:
 
Mercedes-Benz C 63 AMG with Performance Package Plus
Cylinder arrangement                   V8
Cylinder angle                              90°
Valves per cylinder                        4
Displacement                               6208 cc
Bore x stroke                               102.2 x 94.6 mm
Compression ratio                        11.3:1
Output                                        358 kW/487 hp at 6800 rpm
Max. torque                                 600 Nm at 5000 rpm
Maximum engine speed                7200 rpm
Engine weight (dry)                       196 kg
Fuel consumption NEDC combined   13.4 (13.6) l/100 km
CO2 emissions                              318 (323) g/km
Acceleration 0–100 km/h                4.4 (4.5) s
Top speed                                    250 km/h*
*electronically limited; figures in brackets: estate model
AMG high-performance braking system featuring composite technology
The Performance Package Plus braking system has been adapted to the enhanced driving dynamics. A new AMG high-performance braking system ensures greater stability when driving dynamically, with compound brake discs on the front axle and red painted brake callipers all round showing the AMG logo. The brake discs feature a composite design and are connected to an aluminium bowl to avoid temperature peaks. The connection between the disc and bowl is new: instead of the usual screw connection, the aluminium bowl is now connected to the brake disc via cast-in arms. The advantage is more homogenous temperature distribution on the brake disc.
A further identifying feature of the Performance Package Plus is the AMG carbon fibre spoiler lip on the boot lid (saloon). In the interior, the AMG performance steering wheel in nappa leather with a grip area trimmed in Alcantara feels good, while at the same time making a striking visual impact.
The new AMG Performance Package Plus is available for C 63 AMG saloon and estate models and can be ordered now. The sales price is €7080.50 or €6426
(saloon/estate; prices include 19% VAT) with the market launch taking place in December 2009.
Extended appointments in black designo leather
New black designo leather as an optional extra will enhance the interior even further and covers the upper section of the dashboard, the upper door trim and the armrest on the centre console. This high-quality feature is available in conjunction with nappa leather appointments for €2856 (price includes 19% VAT).
The internationally successful C 63 AMG model
The C 63 AMG is one of the most popular vehicles in the Mercedes-AMG model range. In 2008, 8100 units of this high-performance car were sold worldwide. The C 63 AMG demonstrates its sports credentials in international motorsport as well as on the road. For example, the C 63 AMG estate is used as the official F1™ medical car and the C 63 AMG saloon acts as a safety car in the DTM German Touring Car Masters.

Source: Mercedes