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Brabus extracts 1450Nm from Mercedes-AMG GLS 63

Brabus has turned its attention to the recently-renamed Mercedes-AMG GLS 63, extracting an additional 195kW and 690Nm from the AMG powertrain. Welcome to the Brabus 850 XL.


The Brabus 850 XL was built as a special order for a client, but due to popular demand from who must be none-other-than Arnold Schwarzenegger, Sylvester Stallone – or maybe both – Brabus said it’s happy to give any GLS 63 AMG the Brabus touch.

First up, the powertrain. Extracting an extra 195kW/690Nm from AMG’s already monstrous 5.5-litre bi-turbo V8 was achieved by increasing the powertrain’s capacity to the 6.0-litre mark, and the addition of two turbochargers developed in-house at Brabus. There’s also a new crankshaft to handle the power increase, carbon fibre intake module, larger air intakes and an all-new exhaust manifold lined with gold for heat protection.

The end result is a total output of 625kW of power and staggering 1450Nm of torque, which translates to a 0-100km/h run in 4.2 seconds, down from 4.9 in the stock AMG GLS 63; not bad considering the 850 XL weighs more than two-and-a-half tonnes. Power is transferred to all four wheels via a speedshift plus 7G-Tronic transmission.


Brabus says that ‘in the interest of tyre safety, the top speed is limited electronically to 300km/h”. We’re not going to argue with Brabus on that one.

Brabus has fiddled with AMG’s air suspension system, lowering the ride height by 30mm. Also included is a wider naked carbon fibre bodykit including a new front spoiler and rear diffuser, as well as 23-inch monoblock forged wheels wrapped in the choice of Continental, Pirelli or YOKOHAMA 295/35 R 23 rubber.

In terms of the interior, the sky is the limit according to Brabus, offering all the high-quality leather, wood and carbon trim options you could imagine, in addition to the aluminium pedals and wheel-mounted paddle shifters.

The Brabus 850 XL can be all yours provided you’ve got a GLS 63 AMG and profoundly deep pockets.

Alexi is a contributing news journalist and junior road tester at PerformanceDrive. He has a passion and appreciation for the engineering in cars, as well as new technologies that lessen the impact on the environment. His dream cars are an M3 to drive to work, and a LaFerrari for the weekend.