Mercedes-AMG has never sold a four-door convertible version of the current G 63, so BRABUS built one. The German tuner-turned-coachbuilder pulled the cover off the 900 ROCKET EDITION CABRIO at the Monaco Yacht Show, and it is the first open-top car to wear the ROCKET badge in the company’s history. Only 50 will be made.
The roof is the hard part, and BRABUS claims more than 500 newly developed pieces went into the two-piece electric soft top. It drops or raises in about 20 seconds, carries a heated safety-glass rear window, and locks into a reinforced windshield frame up front. A wide carbon roof bow keeps the fabric from ballooning at speed, while a steel roll bar behind the rear doors, dressed in exposed carbon, anchors the rear section that folds away behind the back seats. BRABUS says structural rigidity matches the fixed-roof truck, the conversion has passed TUV approval, and every finished car spends more than ten hours under water in a climate chamber before it gets signed off.
Under the Powerdome hood sits the familiar ROCKET 900 treatment: the twin-turbo V8 is bored out to 84 millimeters and given a billet crankshaft with a 100-millimeter stroke, taking displacement from 4.0 to 4.4 liters. Add forged pistons, beefier rods, a pair of larger turbos running 1.4 bar, and fresh calibration, and you get 900 horsepower at 6,200 rpm with 922 lb-ft at 2,900 rpm. Drivers only see 774 lb-ft of that, since the electronics cap torque to protect the driveline. Sixty-two mph arrives in 3.7 seconds, and the top speed is held to 149 mph by the tires. The stainless exhaust exits ahead of the rear wheels through carbon surrounds and has valves that swap between a full V8 bellow and a quiet Coming Home setting.
Visually it is pure ROCKET EDITION: a carbon widebody in two-tone matte and gloss black, an illuminated carbon grille surround with red signature stripes, a lit front badge, LED-equipped running boards, and red-illuminated BRABUS lettering on the tailgate. The fender flares exist to cover 24-inch PLATINUM EDITION forged wheels, a modern take on the Monoblock II three-spoke design from the late 1980s, fitted with carbon aeroblades and wrapped in 295/30 front and 345/25 rear rubber. KW helped develop the RideControl coilover setup, which can drop the body by up to 1.8 inches and adjusts damping through the stock Drive Select switch.
Inside, BRABUS went the full Masterpiece route with black leather and Alcantara, Shell-pattern quilting on nearly every surface including the footwells and cargo area, red stitching and piping, and switches, vents and speaker grilles finished in ROCKET RED. Carbon trim and carbon paddle shifters with built-in shift lights round it out, the rear doors swing to 90 degrees thanks to Easy Entry hinges, and the speedometer reads to 300 km/h. Each car ships with leather-trimmed keys, a matching Weekender bag, and a blockchain-based digital product passport built into a spec plate in the trunk.
Every example is built to its buyer’s spec, and the show car carries a listed export price of 890,740 euros before German VAT, or roughly a million dollars for a G-Class with no roof. Claimed fuel economy is 14.4 mpg combined.
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