Following the release of the 700 Widestar last year, Brabus is taking the latest Mercedes-AMG G63 up a notch with the 800 Widestar package.

Debuting at the Geneva Motor Show tomorrow, the 800 Widestar brings a series of improvements over the 700 Widestar. The most important change regards the 4.0-liter twin-turbo V8 powertrain, which has been pushed to 800 PS (789 hp) at 6,600 rpm and 1,000 Nm (737 lb-ft) of torque at 3,600 rpm.

Those represent gains of 215 PS (212 hp) and 150 Nm (111 lb-ft) over the standard Mercedes-AMG G63 and 100 PS (99 hp) and 50 Nm (37 lb-ft) over the 700 version.

This enables the souped-up G63 to accelerate from 0 to 100 km/h (62 mph) in just 4.1 seconds and reach an electronically limited top speed of 240 km/h (149 mph). In this application, the nine-speed automatic transmission gains Brabus Race aluminum paddle shifters.

The 800 Widestar’s impressive performance is reflected in its aggressive wide-body kit, 23-inch Brabus Platinum Edition Monoblock forged wheels, Brabus stainless steel sports exhaust system with actively controlled exhaust flaps, and full leather interior seasoned with carbon fiber trim.

The vehicle is 100 mm (4 in) wider than the stock Mercedes-AMG G63. Design highlights include the redesigned front and rear fascias, auxiliary LED lights under the side air intakes and on the roof, carbon hood attachment featuring two integrated power bulges, Brabus roof wing, naked-carbon spare wheel cover, illuminated Brabus logo for the radiator grille, and more.

The show car that will be on display in Geneva has all chrome parts painted in the same black hue as the bodywork, with the brake calipers and Brabus logo in the grille matching the color of the cabin’s cuoio fine leather.