Yes, even the Maybach is not spared from the tuner’s touch. This is the Brabus Rocket 900, Bottrop’s rendition of the Mercedes-Maybach S 600 limo, the flagship luxury car from Mercedes-Benz that’s a step above the top S-Class.

The Mercedes-Maybach S 600 rolls off the factory with a 6.0 litre twin-turbo V12 engine, and its 530 hp/830 Nm is not lacking by any means. Brabus has taken those figures to a crazy 900 hp and wait for it – 1,500 Nm of torque! That’s enough to propel this over 2.8 tonne beast from 0 to 100 km/h in 3.7 seconds. Top speed is in excess of 350 km/h and the speedo reads till 400 km/h.

To achieve those rather disturbing numbers (this is a stretched limo, folks), Brabus increased the engine’s displacement from 6.0 to 6.3 litres. The installation of a custom billet crankshaft with longer stroke in concert with a larger cylinder bore, matching forged pistons and precision-balanced connecting rods were used for this purpose.

Extensive mods to the engine peripherals were done. The stock turbos were replaced with units with larger compressor units and turbines, which are adapted to the V12 engine with the help of special exhaust manifolds. The conversion includes 80 mm diameter down pipes, free-flow metal catalysts and a stainless-steel exhaust system with actively controlled exhaust flaps.

On the intake side, the carbon Brabus 900 intake module – which draws its air through an air duct in the hood directly from the redesigned radiator grille – is included. The new intake manifold includes a special air filter box with larger cross-section and special filters as well as the tuner’s “Gold Heat Reflection” sheathing to lower temperature. New mapping for all the modded hardware ensures Euro 6 compliance despite the increased power.

The exterior treatment is standard Brabus fare. The four-seat limo receives the tuner’s aerodynamic-enhancement components, a newly designed radiator grille and Brabus Monoblock “Platinum Edition” 21-inch forged wheels. Monoblock G 22-inch wheels can be ordered. The Rocket 900’s lower ride height (by 25 mm) is courtesy of a special module for the Magic Body Control air suspension.

Inside, Bottrop’s upholstery shop is able to fulfill any colour request for leather, Alcantara, wood and carbon trim. More interesting is the “in-car business concept” centered on the Microsoft Surface tablet computer. Two of those are stored and recharged safely, hidden from view in docking stations inside the centre console dividing the two individual rear seats.

One of the two Windows tablets is integrated with the car’s on-board electronics. As a result, its audio and video signals are reproduced by the car’s audio system and the screens integrated into the backs of the front seats. The Brabus Touch Control Panel with a 3.5-inch screen integrated into the rear centre armrest lets one adjust the angle of the tablets and control the volume. There’s a 4G router for Internet connection.

The Brabus 900 can be built to order as a complete car. Tycoons who already own a Mercedes-Maybach S 600 can have their limo converted to this level all at once, or gradually.