Besides the 800 Widestar based on the latest G63, Brabus is also sending off the outgoing G-Class in style at the 2019 Geneva Motor Show, with the 850 6.0 Biturbo 4×4² Final Edition “1 of 5.”

The long name pretty much gives away everything about this “heavy-duty off-road supercar,” as Brabus calls it. Based on the previous-generation Mercedes-AMG G63, the off-roader uses portal axles for an enormous 600 mm (23.6 in) ground clearance.

The standard 5.5-liter twin-turbo V8 engine was replaced with a 6.0-liter unit — Brabus’ most powerful eight-cylinder engine to date. It produces 850 PS (838 hp) at 5,400 rpm and a monumental peak torque of 1,450 Nm (1,069 lb-ft), available between 2,500 and 4,500 rpm.

As a result, the Brabus 850 6.0 Biturbo 4×4² Final Edition “1 of 5” will shoot from 0 to 100 km/h (62 mph) in 4.7 seconds and top out at 210 km/h (130 mph), only because the off-road tires couldn’t take more abuse.

That’s a reminder that this thing is extremely capable off the beaten track thanks to the huge ride height and the maximal articulation of the two axles. The portal axles were developed specifically for this purpose by Brabus engineers, who also fitted the car with a specially calibrated damping system.

Other off-road modifications include the front and rear skid plates, massive Brabus carbon fender flares, as well as 9.5 J x 22 wheels shod with 325/55 R 22 Pirelli Scorpion ATR off-road tires.

The mighty off-roader also features unique naked-carbon styling upgrades, such as the roof spoiler above the windshield that incorporates an additional pair of daytime running lights, but also the hood scoop, bezels surrounding the headlights, and the covers on the front fenders. The carbon radiator grille with Brabus logo at the center and carbon spare wheel cover round off the exterior modifications.

Inside, Brabus has given the 850 6.0 Biturbo 4×4² Final Edition “1 of 5” a lavish treatment courtesy of an exclusive all-leather interior with blue highlights. The 2+2 seating arrangement of the show car that will be on display in Geneva is also a sign of the model’s exclusivity.

All that comes at a price of €482,000 (about $547,000) in Germany, including 19 percent VAT. That’s an awful lot, but at least only four other people will own a similar vehicle in the entire world.