The Brabus 800 GT is an AMG GT63 S on steroids

It was inevitable. A new AMG model means only a few months until Brabus releases a ludicrous, much faster and louder version. Of course, the 2019 Brabus 800 GT is that to its AMG GT63 S donor.

AMG’s 4.0-litre twin-turbo V8 has been given the Brabus treatment. With 588kW and a frankly bananas 1000Nm of torque, the 800 GT is claimed to be able to hit 100km/h in an almost-911 GT2 RS-rivalling 2.9 seconds.

AMG’s 9-speed Speedshift transmission and ‘4Matic+’ all-wheel drive systems remain in place, providing the traction and sharp shifts required for that acceleration. If that’s a concern given the extra power, Brabus’ confidence in the standard drivetrain (even with its power incease) is such that it offers a three-year or 100,000km warranty.

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The changes Brabus has made, however, are focused on the engine. What Brabus calls the ‘PowerXtra B40S-800 performance upgrade’ is a modification to the turbos, with new Brabus turbochargers designed for more boost compression – up to 1.6 bar or 23.2psi.

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“Recalibrating the boost-pressure control and further optimizing the power delivery without impairing the durability required reprogramming the mapping of the electronic engine control unit.

“To this end, Brabus conducted extensive testing on stationary engine test benches of the latest generation. At the same time, road testing was conducted on racetracks and in traffic.”

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But it can’t be a Brabus without looking like the devil himself might consider buying one. Black everywhere, of course, with hints of carbon on what Brabus says are working aerodynamic modifications.

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With a top speed of 315km/h aero is important, so Brabus has included its own front spoiler to “reduce front-axle lift at high speeds”, a larger set of intakes, and a new rear diffuser in carbon, surrounding the tailpipes.

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Brabus also developed new wheels for the 800 GT, 21-inch and 22 at the front and rear respectively, in 10-spoke design forged to reduce unsprung mass without sacrificing strength. The tyres wrapped around these wheels (from Continental, Pirelli or Yokohama) are 275/35 at the front, and very wide 335/25 rubber at the rear.

Of course, the interior is refitted with Brabus’ leather seats, dark colour scheme, scuff plates, aluminum door pins and pedals, wood or carbon inlays, and plenty of Brabus badging.

Check out the gallery of gorgeous details at the top of this page!