A detailed look at the engine of the Brabus P 900 Rocket Edition

Most people all over the world have seen cars that look a lot like Mercedes-Benz, only they have the letter “B” where the three-pointed star should have been on the grille. This “B” stands for “Brabus”, a German high performance car tuning company this specialized in Mercedes-Benz and Maybachalthough it has expanded its tuning services to include smart cars, Porscheand Rolls Royce.


Last month, Brabus unveiled the P 900 Rocket Edition dubbed “One of Ten” based on the 2022 Mercedes-AMG G63. Brabus took the G63 SUV and redesigned it in the image of the 2013 – 2015 Mercedes-AMG 6×6 Sport Utility Truck (SUT).

This Mercedes-AMG SUT derivative of the six-wheel-drive Mercedes G-Wagon developed for the Australian Army in 2007 already combines the best of three worlds, but Brabus has taken it further, cutting off a set of wheels to make it four and powering it with a 4.5-liter Brabus Rocket 900 twin-turbo V8 engine that produces 900 horsepower. It is not an optional grinder on the Brabus P 900 Rocket models. It is standard and worth the detour.

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The Brabus P 900 rocket is one of ten

The Brabus P900 Rocket Edition transformed the Mercedes G-Wagon into a rugged 900 horsepower land beast. It’s like Brabus designing an all-terrain SUT that’s nothing like any luxury G-Wagon you’ve ever seen on the market. You would have thought Mercedes-AMG did a perfect job merging luxury and ruggedness in the Mercedes-AMG G63 flagship, but Brabus has managed to show everyone just how much better it can be.

The Brabus P 900 Rocket edition was limited to only ten copies, therefore “One of Ten” was added to its name, while the “P 900 Rocket” says a lot about what the German tuning company has do. There’s supposedly nothing to hide about the AMG V8 engine, which is why Brabus exposed it to prying eyes via a new “PowerView” bonnet. There’s absolutely no reason to hide the bored out 4.0 to 4.5 liter V8, fitted with new forged pistons and updated turbos, and remapped for fuel injection, ignition and control of the boost pressure.

That’s what Brabus did and that’s how the G63 with a “B” badge got 900 horsepower, an impressive 585 horsepower that tops the stock 315 horsepower. The updated engine propels the G63 SUT to 62 mph in 3.7 seconds and a top speed of 175 mph.

If you thought you’ve seen enough of the “B” badge on too many G-Class Mercs, well, here’s the German tuner that shows you how wrong you are. Touchpoints include pickup body, undercarriage and drool-worthy performance. It’s unquestionably the most road-focused G-Wagon with a bed, still managing to sit 80.9 inches tall to maintain the G-Wagon’s signature commanding presence.

The Brabus P900 rocket, one of twenty-five

Certainly, the Brabus Rocket series has never been so prodigious and powerful. Please don’t tell us you thought this was the first Brabus Rocket. In fact, Brabus first offered the Rocket Edition in 2006, a modified Mercedes-Benz CLS-Class (W219) fitted with a 6.2-liter turbocharged engine. M272 V12 engine producing 720 horsepower.

Remember, that was nearly two decades ago – 720 horsepower from a stock Mercedes four-door coupe with 268 horsepower at 6,000 rpm. Notably, that same year, Brabus unveiled a police car version of the Mercedes CLS V12 S Rocket through the “Tune It Safe” program of the German Federal Ministry of Traffic and the Association of German Automobile Tuners.

That same year, the Brabus Rocket set the world land speed record for a street-legal saloon (including any police car), recording 227.2 mph on the Italian ring of Nardò. Brabus has been producing the Rocket 900 since 2015, but this is the first time the bulky G-Wagon has gone the way of the Rocket.

“With the BRABUS 900 Rocket Edition,” said Brabus, “we are expanding our Rocket product program by combining the performance of a track-ready supercar with the space and functionality of the Mercedes-Benz G-Class à la from BRABUS.”

Brabus based the “One of Twenty-Five” on the AMG G63 SUV, refining the aerodynamics with its new “Widestar” design package. They also include 24-inch aero disc wheels, a valve-controlled sports exhaust system, an exceptional bespoke Brabus Masterpiece interior and the latest top performance courtesy of the Brabus 900 4.5-litre twin-turbo V8 engine producing its namesake. 900 horsepower.

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A detailed look at the 900 HP V8 engine of the Brabus P 900 Rocket

The AMG 4.5-liter V8 engine’s build sheet includes a long list of software and hardware tweaks that achieved the substantial jumps of 585 horsepower over the stock 4.0-liter engine. The list includes a special precision-balanced crankshaft machined from solid material with a 100mm stroke, two special Brabus turbochargers with a larger compressor unit (diameter 52mm) and two modified core sets with axial bearings reinforced.

In addition, eight special connecting rods machined from solid material, specially applied Brabus software for the engine control unit, eight forged pistons for 84 mm bore and matched compression height, Brabus metal catalyst system reducing the back pressure, two high pressure fuel pumps with output increase, Brabus Start-Stop memory, booster pump sets for low pressure circle and Brabus BoostXtra – wastegate adapter.

Technically, the P 900 Rocket generates 888 horsepower (equivalent to 900 hp) and an electronically limited torque of 774 lb-ft transmitted to all four wheels via a nine-speed automatic transmission and a permanent AWD system.

You might have disagreed when we said earlier that “the Brabus Rocket series has never been so stupendous and powerful”. You may disagree because the first One of Ten Rocket 900 in 2020 accelerated to 62 mph in 2.8 seconds and reached a top speed of 206 mph. Well, don’t forget, Brabus based the 2020 900 “One of Ten” on the Mercedes-AMG GT 63 S 4Matic+4-door coupé.

So the new Brabus P 900 Rocket is a 5,997 lb SUT with a modified Biturbo V8 blasting it to 62 mph in 3.7 seconds, faster than many modern sports cars. Interestingly, the “SUT” pickup shares the same horsepower as the “normal” Brabus 900 Rocket, despite weighing 353 pounds more. The electronically limited top speed is for your good. It will only cost you $640,806 (before taxes) to snag the One of Ten.

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