Brabus 900 Rocket Edition G63 Tuning Guide 2026 — Body Kit, 24" Wheels & 900hp Powertrain

The Brabus 900 Rocket Edition is the flagship expression of everything Brabus has ever learned about the Mercedes-AMG G63 W463a. Built around a 4.5-litre stroker version of the 4.0L M177 biturbo V8, equipped with forged internals, larger Brabus turbochargers, race-spec intercoolers and a bespoke 900 ECU, the Rocket Edition develops a full 900hp and 1250 Nm of torque — enough to punch the three-tonne ladder-frame body-on-frame G-Wagen from 0 to 100 km/h in roughly 3.7 seconds. Brabus typically limits the Rocket Edition to fewer than 25 units worldwide, making it one of the rarest and most collectible post-2018 G-Class derivatives ever built. This guide covers the real Brabus 900 Rocket specification, the regional markets that drive demand, and the ownership considerations that matter before you specify one.

Brabus 900 Rocket Edition — Key Specifications

Platform — W463a Ladder Frame Body-on-Frame

The Rocket Edition is built exclusively on the Mercedes-Benz G-Class W463a (2018–present) — the heavily re-engineered G-Wagen that retains the body-on-frame, ladder-chassis architecture of the original while modernising the cabin, the 9G-TRONIC gearbox, the independent front suspension and the electrical package. This is important for Brabus conversion work: the G-Wagen does not share a unitary monocoque with any other modern Mercedes. The S-Class, GLS and GLE use separate architectures, so every 900 Rocket part is specifically designed and tested for the G63 chassis alone. The ladder frame is what lets Brabus push 900hp through the driveline without the structural compromises a monocoque platform would impose, and it is what permits the radical widebody conversion without sacrificing rigidity.

Body Kits — The Brabus 900 Rocket Widebody

Brabus 900 Rocket (full Rocket widebody). The defining visual package of the Rocket Edition is a full carbon-fibre widebody conversion unique to this program: a wider front bumper with centred, large-format air intakes and an integrated splitter, reshaped front fenders with functional venting, the signature Brabus 900 unique fender flare treatment front and rear, side skirts that channel air around the rear wheels, a bespoke rear bumper housing the Rocket-style centre-mount twin-tailpipe exhaust outlets, and a carbon roof spoiler. The body adds approximately 20 cm of width and transforms the silhouette of the G63 entirely. Unlike bolt-on kits from smaller tuners, the Brabus widebody is structural — the flares are bonded and riveted, the bumpers integrate with the crash structure, and the whole car is re-homologated by Brabus for road use in its target markets.

Brabus 800 Widestar. For customers who want the visual drama of the 900 but without the full stroker engine build, Brabus also offers the Widestar package on the same W463a base. Widestar shares the widebody flares but uses the 800 Power Xtra engine package (retaining the 4.0-litre displacement with larger turbos, 800hp, 1000 Nm). This is essentially the entry point into the widebody Brabus G world and is typically delivered in larger volumes than the Rocket. Visual differences versus the Rocket are subtle: the 800 Widestar keeps the factory-style side-exit exhaust rather than the Rocket centre-mount setup, and the front bumper aero is slightly less aggressive.

Mansory Gronos. Mansory, the other major German G-Wagen house, competes with its Gronos program on the W463a: full carbon widebody, bespoke front bumper, roof scoop, carbon bonnet vents and a power upgrade of up to 850hp. Gronos is visually louder than the Brabus Rocket — more exposed carbon, more aggressive graphics options, typically specified with Mansory's own forged wheels. Customers tend to choose Gronos over Rocket when they want maximum visual drama and do not mind Mansory's more polarising design language.

TopCar Design Inferno. Russian-German tuner TopCar Design offers the Inferno widebody package for the W463a — a full carbon kit with distinctive rear fender shoulder extensions, a roof-mounted air scoop, and matching forged wheels from TopCar's own catalogue. Inferno is less extreme than the Brabus Rocket but offers a strong value proposition for customers who want the widebody look without waiting for a Brabus build slot.

Lumma CLR G770. Lumma Design's CLR G770 package for the W463a focuses on exterior styling with widened fenders, a quad-exhaust rear bumper and 24" Lumma forged wheels. Lumma's engine tuning is typically less aggressive than Brabus (targeted at the 700–750hp range) but the kit is widely available and supports mid-life G63 transformations.

Wheels — 23" and 24" Brabus Forged

The Rocket Edition is delivered on either the 23" Brabus Monoblock P Platinum Edition or the 24" Brabus PORTAL forged wheel, both developed specifically for the widebody chassis geometry. The 23" Monoblock P is specified at 10.5J × 23 ET38 front and 11.5J × 23 ET45 rear, wrapped in Continental SportContact 6 SUV rubber in 295/35 ZR23 front / 335/30 ZR23 rear — a road-biased tyre profile that maximises on-road grip and visual drama. The 24" PORTAL option fits 11.0J × 24 ET40 front and 12.0J × 24 ET45 rear with 295/30 ZR24 / 325/30 ZR24 Pirelli P Zero SUV rubber; this is the wheel you specify if the car will live in the Gulf, where 24" is the de-facto G-Wagen standard. Both wheels are Brabus-forged in Germany (Bottrop machining) from a single aluminium billet, treated with PVD Platinum coating to resist Arabian sand abrasion and European road-salt pitting. For customers who want maximum visual contrast, Brabus offers a gloss-black centre with Platinum rim-edge finish on both wheel profiles — a configuration widely specified by Middle Eastern clients.

Performance — Stage 1 / Stage 2 Context

The Rocket Edition is effectively a factory Brabus Stage 3+ build — there is nowhere meaningful to go from the 900hp / 1250 Nm baseline without compromising reliability. For reference, however, the W463a tuning ladder runs: Stage 1 (ECU-only) on the stock M177 reaches around 650hp from 585hp; Stage 2 (ECU + downpipes + intake) reaches approximately 720hp; the Brabus 800 Power Xtra stage replaces the turbos and reaches 800hp; the Rocket's 900 package is the stroker-crank build that represents the maximum output achievable while retaining drivability and the 9G-TRONIC transmission. The Rocket's bespoke stainless-steel Brabus exhaust features active flap control and the distinctive centre-mount twin-tailpipe outlets that give the Rocket Edition its name and its unmistakable acoustic signature.

Brakes — Carbon-Ceramic 6-Piston

To manage the Rocket's 900hp and three-tonne mass, Brabus specifies a full carbon-ceramic brake system: 6-piston fixed aluminium front calipers on large-diameter drilled and vented carbon-ceramic discs, with matched rear calipers. The carbon-ceramic compound reduces unsprung mass significantly versus the factory steel setup, improves high-speed stopping repeatability, and eliminates brake-dust discoloration of the forged wheel finish — a meaningful quality-of-life benefit given the Platinum or gloss-black centre specifications. Pads are selected for the balance between cold-bite (important for Middle Eastern overnight parking scenarios) and high-temperature fade resistance.

Interior — Bespoke Mastik Leather with 900 Rocket Badging

The Rocket Edition cabin is trimmed entirely in Brabus's Mastik fine-grain leather in a customer-specified colour combination, with quilted diamond-pattern seat inserts, contrast stitching, carbon-fibre dashboard and door-card inlays, Brabus illuminated door sills, and a numbered "Brabus 900 Rocket Edition" dashboard badge identifying the build within the limited run. A bespoke alcantara headliner, aluminium pedal set and weighted Brabus gearshift knob complete the package. Every Rocket cabin is hand-finished at Bottrop and photographed before delivery; the build documentation becomes part of the provenance file for resale.

Brabus 900 Rocket — Regional Adoption

The Rocket Edition's global distribution is concentrated in three distinct markets, and the specification preferences in each market differ sharply. In the Middle East — the single most active buyer region, with Riyadh and Dubai showrooms taking the lion's share of build slots — Rocket Editions are most commonly ordered in matte black or military green, with chrome trim elements swapped for matte or PVD-black finishes to cope with the sun's effect on chromed surfaces. 24" PORTAL forged wheels are the regional standard, and paint protection film is applied before the car ever leaves the workshop given the prevalence of sandstorms. In Russia and the CIS, buyers skew towards the high-roller demographic in Moscow and St Petersburg: obsidian black is the dominant paint choice, paired with dark Mastik interior combinations; armoured glass and B6/B7-level ballistic upgrades are frequently specified as an option, given the security considerations facing the customer base, and 23" Monoblock P wheels are preferred over 24" for the winter tyre-swap flexibility they offer on Russian roads. In the United States, the Rocket Edition is a collector-only vehicle — registration realities around ladder-frame widebody imports, stroker-engine emissions compliance and bumper height regulations limit public-road use; Florida and California dominate the American customer base, with blue-and-silver paint combinations leading the specification sheets, and buyers rarely modify their cars further given their near-immediate collectible status.

Frequently Asked Questions

How many Brabus 900 Rocket Editions are being built?

Brabus typically caps the Rocket Edition at fewer than 25 units worldwide per production wave. Exact numbers are not published publicly and each wave can differ, but realistic global allocation sits between 15 and 25 examples, with Middle Eastern customers historically taking roughly half of each run. Wait times from contract signature to delivery typically run eight to twelve months given the stroker-engine rebuild time and the hand-finished Mastik leather trim schedule at Bottrop. Because every car is specified individually to the customer's colour, leather and wheel preference, each Rocket is effectively a one-of-one within the limited run.

Can ordinary customers actually buy a 900 Rocket Edition?

Yes, but with practical caveats. The Rocket Edition is a build-to-order vehicle sold through Brabus-authorised distributors worldwide — Hodoor among them. Customers must first secure a base Mercedes-AMG G63 W463a donor (from their local Mercedes dealer or as a new-allocation vehicle), then transfer that vehicle to Brabus Bottrop for the full 900 Rocket conversion. A complete Rocket Edition build typically runs into seven-figure territory when the donor cost, the Brabus 900 package, the widebody, the 24" forged wheels, the carbon-ceramic brakes and the bespoke Mastik interior are all totalled. The limiting factor is typically build-slot allocation rather than price — Brabus releases slots in waves and they are typically pre-spoken for by existing clients.

What is different between the Brabus 900 Rocket and the Brabus 800 Widestar?

Three differences matter. First, the engine: the 900 Rocket uses a 4.5-litre stroker version of the M177 V8 with forged internals and larger turbochargers, delivering 900hp/1250 Nm, while the 800 Widestar retains the 4.0-litre displacement with turbo upgrades and ECU work for 800hp/1000 Nm. Second, the exhaust and rear bumper: the Rocket features a bespoke centre-mount twin-tailpipe arrangement (the visual and acoustic signature of the program), while the Widestar retains the factory-style side-exit exhaust. Third, build volume: the Rocket is capped at fewer than 25 units per wave, while the Widestar is produced in larger volumes as Brabus's widebody flagship for customers who do not secure a Rocket slot. Both cars share the Brabus widebody flares, the Mastik interior program and the forged wheel options.

Is the Rocket Edition a future-proof collectible investment?

The Rocket Edition has an unusually strong collectibility thesis. Three factors drive it: extremely low build volume (<25 units worldwide per wave), the looming end of the pure-V8 G-Wagen era as Mercedes transitions the platform to hybrid and EV powertrains through the late 2020s, and the fact that every Rocket is specified as a one-of-one within the program. Our forecast is that correctly preserved Rocket Editions will outperform comparable hypercars over a five-to-seven-year horizon. To realise that outcome, owners should keep the vehicle as originally delivered (no third-party modification), retain every Brabus build document and factory specification photograph in a fireproof safe, apply full-body paint protection film on day one before the car touches a public road, store in a climate-controlled facility at 15–22 °C and 50% relative humidity to preserve the Mastik leather, and service exclusively through Brabus-authorised workshops so every service entry bears the correct stamp.