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As of May 9, 2026, Brabus has expanded its Rocket lineup with a model that could only come from a tuner that loves the spotlight: the 900 Rocket Edition Cabrio. The four-door Mercedes-G-Class drop top was unveiled at the Monaco Yacht Show with a price tag that clears one million euros, putting it squarely in hypercar territory while still keeping the SUV shape many buyers already recognize.
The idea of a convertible G-Class is not brand-new. Mercedes-Benz offered open G-Wagen models decades ago. But a current G-Class with two full rows of seats, a powered soft top, and a Brabus-tuned engine under the hood is something else. What Brabus has done here is take the boxy G-Class silhouette and remove as much structure as possible above the beltline. The result is an open-air four-door body that has more in common with a luxury yacht tender than with the ordinary, metal-roofed G63 that starts the transformation.
At the Monaco event, the Cabrio was placed among million-euro boats. That is likely not a coincidence. Brabus’s customer base overlaps heavily with the yachting crowd, and the Cabrio’s design language speaks to people who want the open-air experience from land to sea.
The 900 badge points to Brabus’s high-performance Rocket formula. Based on the Mercedes-AMG G63, the Rocket Edition is known for getting a heavily modified biturbo V8, increased displacement, upgraded turbos, a freer-flowing exhaust, and reinforced driveline parts. The first announcement focuses on the body style and price, not the engineering list, but the mechanical recipe follows the closed-roof Rocket Edition that established the formula.
That means buyers should not come looking for a gentle cruiser. The Rocket package is engineered for straight-line speed and a soundtrack loud enough to match the visual drama. Brabus has made no secret of its enthusiasm for torque, and the Cabrio version benefits from the same calibrations that gave the launch Rocket Edition immense thrust. Even with the added complexity of a retractable roof, the concept is still fundamentally a G-Class, so off-road capability and daily usability remain part of the story.
The roof mechanism itself is a major engineering point. Chopping a roof off an SUV can weaken the body and cause shake unless a tuner adds structural braces. Brabus keeps the announcement light on technical details, which is typical for a company that prefers to let the finished product do the talking. Yet the car would have had to pass internal durability checks, and the open cabin is no aftermarket hack. It is a proper convertible conversion done at Brabus’s own facility.
The price ceiling is one of the talking points of the 900 Rocket Edition Cabrio. At more than one million euros, the car costs roughly triple what a standard Mercedes-AMG G63 costs in the United States. It also towers over most factory G-Class variants, including the G63’s usual extra-cost options.
Why would anyone pay that number? Exclusivity is the easiest answer. Brabus builds in small numbers, and a convertible G-Class with the Rocket treatment is rarer than almost anything else in the lineup. For a client who already owns a yacht, a private jet, and a winter home in the Alps, another million-dollar car is less an expense than a membership badge.
There is also a practical case. A traditional G-Class is one of the most versatile luxury vehicles on Earth. It seats four adults comfortably, hauls luggage, can climb a curb, and dominates the urban landscape. The Cabrio adds the one thing the standard G-Class rarely offers: unobstructed sky. It removes the insulated metal roof and lets the driver hear the V8 and smell the environment. That is the opposite of the hermetic, all-glass cabin found in most modern luxury SUVs.
Brabus chose the Monaco Yacht Show not because a car show would have been too obvious, but because the customers it wants to reach are already in Monaco during that week. The same buyers who commission a 90-foot yacht do not necessarily attend a Geneva motor show. They are, however, walking along the harbor and looking for accessories that match their boats.
This is a meaningful shift in product marketing. An open-top luxury G-Class is as much a marine accessory as it is a road vehicle. The leather-lined cabin, carbon details, and sharp exterior accents are made to be photographed against Mediterranean skies. The car’s visual volume is enormous, so it fits a dockside photo backdrop as easily as it fits a valet lane in Miami.
It is important to separate this from the open-air G-Class models built in small numbers by Mercedes. Those had strong off-road identities and military-bred simplicity. The Brabus 900 Rocket Edition Cabrio is the opposite. It starts with a modern, unstoppable G-Wagen and then applies luxury, power, and drama. The cabin is full of fine leather, delicate stitching, and the kind of ambient lighting that has become a Brabus signature. The exterior gets aggressive bumpers, a carbon hood, big wheels, and side pipes that are as much sculpture as exhaust.
The four-door format is another differentiator. Many convertible conversions are done as two-door show pieces. Brabus kept the rear doors, meaning the back seat is not a performance seat. Four adults can ride in open-air comfort. That makes the car far more social than an exotic two-seater. It allows the owner to carry three passengers, which is a rare quality in a car that costs seven figures.
The 900 Rocket Edition Cabrio does not really compete in a single category. It is too fast and expensive to be compared to a standard G-Class. It is too practical to be compared to a McLaren or Ferrari. It has no direct rival in the regular production luxury SUV market. The closest competitors are other limited coachbuilt conversions, but none of them carry the Brabus Rocket badge or the unmistakable G-Class profile.
That is exactly why the car is being introduced at a yacht show. It is a statement piece, an object designed to provoke conversation before it is ever driven. And Brabus knows that the people who buy one will rarely use it as a daily commuter. They will use it on weekends, on the Côte d’Azur, or during a summer evening drive along the coast.
Brabus’s million-dollar, four-door G-Class convertible is more than a modified SUV. It is a price statement, a performance package, and a lifestyle object rolled into one. The 900 Rocket Edition Cabrio proves that the G-Class appeals even to buyers who have outgrown conventional open-top sports cars. For anyone with a berth in Monaco and a taste for torque, this is the land-based tender that makes the yacht feel complete.
