Mariani produces a 944-PS Mercedes S63 AMG for its birthday

German traditional tuning company mariani® Car-Styling is turning forty this year – quite a respectable age for an aftermarket shop. To remind everyone that they are still around, they have produced a rather extreme tuning kit for the Mercedes S 63 AMG and AMG GT.

The biggest changes are under the hood. We don’t have all the details, but the twin-turbo V8 there has been tuned to deliver 944 PS (931 hp / 694 kW) and mountain-moving 1,510 Nm (1,114 lb-ft) of torque to the wheels with some help from a stock electric motor. Tuned like this, the S 63 AMG sprints 0-100 km/h (0-62 mph) in 3.1 seconds while remaining street-legal.

On the outside, you can recognize this particular build by its extremely lightweight 22-inch forged wheels, active-valve exhaust system that can go from almost silent to deafening, and tuned suspension. The wheels weigh 10 kilos (22 lbs) each. We are told that switching the suspension into track mode is a matter of a single button press, but the car otherwise remains comfortable enough even for long trips.

Mariani is already offering the package, but you’ll have to inquire about the pricing.