- Brabus transforms the G63 into a four-door convertible.
- Its 4.5-liter twin-turbo V8 produces 900 hp.
- Production is limited to just 50 examples.
The Mercedes-AMG G63 is already totally too much for 99% of its buyers. Still, there are plenty of ways to make it even less sensible. More power? Easy. Giant wheels? Of course. Carbon fiber absolutely everywhere for no practical reason? Been there. Brabus, however, has gone several steps further by chopping off the roof, adding 900 hp, and turning the G-Class into something resembling a supercar beach buggy for people with nearly seven figures to burn.
Meet the Brabus 900 Rocket Edition Cabrio, a four-door convertible G63 making its debut at the Monaco Yacht Show. Only 50 will be built, and the example pictured here carries an export price of €890,740 (Roughly $1,019,000) before German VAT.
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This isn’t simply a G63 Brabus attacked with a cheap body kit. The company says it developed more than 500 new components for the two-piece electrically operated soft top and extensively reinforced the body to retain rigidity comparable to the regular fixed-roof G-Class. There’s actual engineering under the boxy skin, the tuner says.
The roof takes 20 seconds to open or close and incorporates a heated glass rear window. Brabus also added a carbon-fiber roof bow above the front seats and a steel roll bar behind the rear doors, dubbed the “C-BOW.” When the roof disappears behind the rear seats, a custom tonneau cover keeps everything looking tidy. Brabus even subjects every completed car to more than 10 hours of continuous water testing in a climate chamber. That’s probably reassuring when you’ve spent enough money on a G-Class to buy several actual G-Classes.
Because 577 HP Wasn’t Enough
Then there’s the engine. The AMG‘s 4.0-liter twin-turbo V8 is comprehensively rebuilt and stretched to 4.5 liters. It gets forged pistons, new connecting rods, a billet crankshaft, and upgraded turbochargers running as much as 1.4 bar (20.3 psi) of boost. The result is 900 hp (662 kW) and 922 lb-ft (1,250 Nm) of torque, although Brabus electronically limits the latter to 774 lb-ft (1,050 Nm) in the vehicle.
That’s enough to allegedly send this roofless brick from 0-62 mph (100 km/h) in 3.7 seconds. Top speed is limited to 149 mph (240 km/h), which, frankly, sounds reasonable at worst. The tires wrap around enormous 24-inch forged Monoblock II wheels, measuring 295/30 up front and a steamroller-like 345/25 at the rear. A Brabus RideControl coilover suspension developed with KW can drop the G63 by as much as 1.8 inches (45 mm).
Red. Lots And Lots Of Red
Subtlety doesn’t suddenly appear when you open the doors. Brabus covers the cabin in black leather and Alcantara with its Shell-pattern quilting. Then, it applies bright red stitching, piping, and “Rocket Red” trim to seemingly anything that can be removed and painted. There’s carbon fiber throughout, LED-equipped carbon shift paddles, and even special hinges that allow the rear doors to open to 90 degrees.
And because apparently even a wildly modified 900-hp convertible G-Class needs provenance in 2026, each car gets a blockchain-based Digital Product Passport documenting its authenticity, ownership, and specifications. Cool. Is any of this necessary? Absolutely not. But a 900-hp, four-door, open-top G-Class was never going to be an exercise in reasonableness or taste.
