The Mercedes-AMG G63 has long been the poster child for automotive excess, and for many it still sits at the top of that ridiculous pyramid. Brabus has just decided it wasn’t excessive enough. The German tuner has stripped away the roof, added an electric soft top, and pushed the V8 biturbo up to 900 horsepower. The result is a four‑door, raised Cabriolet that marries the sunniest vibe of a beach supercar with the imposing presence of a luxury SUV.
Dubbed the Brabus 900 Rocket Edition Cabrio, this beast is based on the Mercedes-AMG G 63 and makes its debut at the Monaco Yacht Show. The 4.0-liter AMG V8 is bored out to 4.5 liters, completely rebuilt, to deliver 900 horsepower and 1,250 Nm of torque. Brabus will limit production to just 50 units, and the example on display carries an export price of €890,740 before VAT, roughly $1,019,000. That’s enough to reserve this topless G-Class for a handful of buyers willing to sign seven figures to cruise wind‑in‑the‑hair in a block of steel and carbon.
Brabus 900 Rocket Edition Cabrio: A G 63 Transformed into a Four-Door Convertible
This 900 Rocket Edition Cabrio isn’t simply a G 63 wearing a dress‑up kit. Brabus says it developed more than 500 new components for the two‑piece electric roof and the chassis reinforcements to keep rigidity close to that of a fixed‑roof G‑Class. The soft top opens or closes in 20 seconds and includes a heated glass rear window. Above the front seats, a carbon rollover arch serves as a roof bow, complemented behind the rear doors by a steel arch dubbed the “C‑BOW,” Carscoops reports.
Once the roof folds away behind the bench, a dedicated tonneau cover hides it to preserve the clean silhouette as much as possible. Brabus subjects each unit to more than ten hours of spray-testing in a climate chamber to verify that this open G‑Class remains as watertight as a conventional SUV. To curb the roll of this tall, hefty box, the chassis employs a Brabus RideControl adjustable suspension developed with KW. It can lower the ride height by up to 45 mm, which is a welcome feature given the car’s high center of gravity and brute mass.
900 HP, 4.5-Liter V8, 24‑Inch Wheels, and a Bold Red Interior
Under the hood, the 4.0‑liter twin‑turbo AMG V8 is dismantled and completely redesigned. Its displacement increases to 4.5 liters thanks to forged pistons, strengthened connecting rods, and a machined crankshaft. The two turbochargers breathe up to 1.4 bar (20.3 psi) to deliver 900 horsepower and 1,250 Nm of torque. In the cabin, torque is electronically limited to 1,050 Nm to safeguard the drivetrain. Brabus claims a 0–60 mph sprint in 3.7 seconds and a top speed electronically limited to 149 mph (240 km/h)—an astonishing figure for a vehicle of this shape and size.
The tires are tasked with handling this power on 24‑inch Monoblock II forged wheels. Front tires measure 295/30, while the rears measure 345/25, both stacked under a rolling stance that looks like a set of road rollers. The interior isn’t shy about visibility or drama. Brabus coats the cabin in black leather and Alcantara with a Shell quilted pattern, then adds Rocket Red contrast stitching, piping, and accent inserts. Carbon fiber covers most surfaces, including the shift paddles that glow with LED illumination. Even the hinges on the rear doors are bespoke, designed to allow a dramatic 90-degree opening for easier access inside the cabin.
And because this 900‑horsepower G63 Cabrio needs to reassure future owners, Brabus assigns it a “Digital Product Passport” built on blockchain. The digital passport bundles authenticity, ownership history, and the complete specification dossier for each unit. It’s a detail that underscores the Rocket Edition Cabrio’s position somewhere between a ultra‑rare collectible and a high‑tech showcase for a select group of G‑Class enthusiasts who are prepared to sign for a four‑door convertible that is as spectacular as it is exclusive.
