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This Mercedes-AMG G63 (W463A) was built with a full CMST dry-carbon body kit, an ENDLESS big brake upgrade with high-carbon racing rotors, and a valved exhaust system. The aero package keeps the G-Wagon's upright, military-cut silhouette intact while adding a carbon front lip, vented carbon bonnet, carbon wheel-arch flares, and a carbon rear bumper with spare-wheel cover and roof wing. Everything here is cosmetic and bolt-on or panel-replacement carbon fibre, so the changes are reversible and do not touch the AMG 4.0-litre biturbo V8 driveline.

• Vehicle: Mercedes-AMG G63, W463A generation (2018 onward)
• Material: Dry carbon fibre (prepreg, autoclave-cured) panels and trim
• Exterior pieces: Front bumper add-on with carbon front lip, vented carbon bonnet, carbon arch flares, carbon rear bumper, spare-wheel cover and roof wing
• Performance pieces fitted: ENDLESS brake kit with high-carbon racing rotors, valved cat-back exhaust
• Finish: Clear-coated gloss carbon weave (satin available on request)

The G63 is the hardest car in the Mercedes range to "tune" visually, because the box-section body is iconic and any add-on that fights the shape looks wrong. CMST's approach is restraint: panels that follow the original lines, with the carbon weave doing the talking. Below is a piece-by-piece walk-through of the build, the material logic, and the questions Australian G-Class owners ask before committing to a carbon kit.

The build: what was fitted to this G63

The donor car is a current-shape G63 in dark green over black. Rather than a widebody conversion, this is a carbon "dress-up" build that sharpens the front and rear without changing the track width, so it keeps factory wheel clearance and ADR-friendly proportions.

Front bumper and carbon front lip

The front gets a bumper add-on with a separate dry-carbon front lip running across the lower edge. On a tall, flat-fronted vehicle like the G-Class the lip's job is mostly visual — it adds a horizontal line that grounds the nose — but it also gives a small amount of front-end air management and protects the lower bumper from kerb scrapes in car parks. The exposed weave reads as a deliberate contrast against the painted bumper.

Vented carbon bonnet

The carbon bonnet is the centrepiece. It replaces the heavy steel factory panel with a single dry-carbon piece carrying raised power-dome vents and mesh-backed extraction louvres. Two things happen here: the front of the car loses real mass over the axle line, which is the most useful place to remove weight, and the louvres let underbonnet heat escape — relevant on the G63 because the biturbo V8 packs a lot of heat into a tight engine bay. The vents are functional cut-outs, not stick-on covers.

Carbon wheel-arch flares and fender vents

Each corner wears a carbon arch flare, and the front fenders gain carbon vent trims with mesh inserts. The flares tidy the join between the wide AMG track and the body, and the weave catches light along the full side of the truck. Because they bolt over the existing arches rather than widening the car, they do not change your guard-to-tyre clearance.

Rear bumper, spare-wheel cover and roof wing

At the back, a carbon rear bumper with an integrated diffuser-style lower section squares off the tail, the tailgate-mounted spare-wheel cover is swapped for a carbon shell, and a roof-edge wing finishes the roofline. The spare-wheel cover is the detail people notice first, because it sits at eye level and turns the G63's most recognisable feature into a carbon statement.

Brakes and exhaust

Beyond the bodywork, this car runs an ENDLESS brake kit with high-carbon racing rotors and a valved cat-back exhaust. The brake upgrade is the sensible companion to a 2.5-tonne SUV with serious power — bigger rotors and multi-piston calipers give more consistent stopping under repeated heavy use. The valved exhaust lets the V8 stay civil on a quiet street and open up when you want the noise. These are separate systems from the carbon kit and can be specified independently.

Why carbon fibre on a G63

Dry carbon (prepreg laid in a mould and cured under heat and pressure in an autoclave) is lighter and holds its shape better than the wet-layup or FRP parts often sold for the G-Class. On a vehicle this heavy, no body kit makes a meaningful dent in kerb weight — the honest reason to choose carbon here is finish quality and the way a tight 2x2 twill looks against gloss paint. A dry-carbon bonnet does remove useful mass high and forward on the car, which is the one place weight loss is felt in how the nose settles.

If you are weighing carbon against painted FRP, the trade is straightforward: FRP is cheaper and paints to match the body, while dry carbon costs more but gives the exposed-weave look and better long-term dimensional stability. You can explore both routes in the CMST body kit range for Mercedes-Benz, and the matching CMST carbon bonnets for Mercedes-Benz if the vented bonnet is the piece you want first.

Fitment and finish in Australia

The kit is model-specific to the W463A G63, so panels follow the factory mounting points and bolt or bond into place without cutting the body. Carbon parts arrive clear-coated; the painted FRP options can be colour-matched by a local shop. We recommend professional fitment so panel gaps are set correctly and the bonnet's safety catch and struts are checked. For Australian buyers, sticking to bolt-on cosmetic carbon keeps the build straightforward from a roadworthy standpoint, since the driveline, lighting and ride height are untouched.

Frequently asked questions

Does this CMST kit fit every G-Class, or only the G63?

It is designed around the current W463A platform (2018 onward), which covers the G63 and the related G500/G350 bumpers in most markets. The front and rear bumper add-ons are styled for the AMG fascia, so confirm your exact model and year before ordering.

Is the carbon bonnet a full replacement or a cover?

It is a full one-piece dry-carbon bonnet that replaces the factory steel panel, with functional vents. It uses the original hinges, latch and strut mounting points.

Will fitting this body kit affect my G63's warranty or driveline?

The carbon kit is cosmetic and bolt-on, so it does not modify the engine, gearbox or suspension. As with any aftermarket part, factory warranty cover applies to the original components, not the new panels — keep your fitment records.

Do I have to run the ENDLESS brakes and valved exhaust as well?

No. The brake kit and exhaust on this car were chosen by the owner and are sold separately from the body kit. You can fit the carbon aero on its own and add performance hardware later.

Dry carbon or painted FRP — which should I choose?

Choose dry carbon if you want the visible weave and the lightest, most stable panels. Choose painted FRP if you want the parts to disappear into the body colour at a lower price. Both are available for most pieces in this kit.

Build your own G63

If this build is the direction you want, start with the full CMST Mercedes-Benz body kit collection to spec your front lip, bonnet, arches and rear, then browse the wider carbon fibre body kit range for finish options. To plan fitment and pricing for an Australian G63, talk to the team via the CMST collection and we will help you build a parts list that suits your car.