This is the 2021 Brabus Rocket 900 and it promises truly ballistic performance. It’s also a fitting addition to the Rocket lineage that has been built by Brabus in different forms since 2006.

The new Brabus Rocket 900 is based around the Mercedes-AMG GT 63 S 4Matic+ and starts out with the standard 4.0-liter twin-turbocharged V8 being increased to 4.5-liters. In addition, Brabus has created a bespoke precision-balanced billet crankshaft with the stroke increased to 100 mm (3.9-inches), while also fitting bespoke billet piston rods, larger forged pistons, and increasing the cylinder bores to 84 mm (3.3-inches).

Read Also: Posaidon’s Mercedes-AMG GT 63 RS 830+ Wants To Be A God Of Performance Sedans

Elsewhere, the famed German tuning company has developed a bespoke forced induction system and fitted new turbochargers that include a larger compressor unit, while increasing maximum boost pressure to 1.4 bar. The 2021 Rocket 900 also includes a carbon fiber ram-air intake system and has been outfitted with a high-performance exhaust system made from stainless steel and complete with adjustable exhaust flaps that are electronically controlled.

These mechanical modifications, combined with a recalibrated ECU, means the Rocket 900 pumps out 888 hp at 6,200 rpm and 922 lb-ft (1,250 Nm) of torque from just 2,900 rpm, although this torque figure has been capped at 774 lb-ft (1,050 Nm) to protect the drivetrain.

Brabus says the car will hit 62 mph (100 km/h) in a mere 2.8 seconds, reach 124 mph (200 km/h) from a standstill in 9.7 seconds, and hit 186 mph (300 km/h) in 23.9 seconds. Its top speed is an electronically limited 205 mph (330 km/h).

To match the added performance, Brabus has designed a bespoke widebody kit for the Rocket 900 that includes flared fenders that increase the width of the car by 7.8 cm (3.1 inches) at the rear. There is also a multi-piece carbon fiber rear wing and diffuser, as well as a set of Brabus Monoblock Z Platinum Edition wheels measuring 21×10.5 at the front and 22×12 at the rear with 295/30 and 335/25 tires respectively.

Brabus will build just 10 examples and buying a fully equipped one costs an eye-watering €427,000 euro excluding VAT, the equivalent of just over half a million dollars.