Mansory Carbon Fiber Body kit set for Mercedes G-class AMG 6x6 Xtreme

Mansory programme — Mercedes-Benz G63 AMG 6×6 (W463, 2013–2015, ~100 units)

This is the Mansory carbon programme for the Mercedes-Benz G63 AMG 6×6 — the six-wheel road-legal G-class Mercedes built in Graz between 2013 and 2015 in a run of roughly 100 cars. The 6×6 is one of the rarest production Mercedes vehicles of the 21st century, and the only six-wheel G-class to wear an AMG badge from the factory. Like the G500 4×4², the 6×6 left Affalterbach already-widebody, on portal axles across all three live axles, with a 5,875 mm overall length, a curb weight just under 3,775 kg, and tyres dimensioned for 37" off-road rubber. Mansory's job on this chassis is not to widen, lift or visually change the silhouette — Mercedes already drew that car. The programme is a carbon overlay set, dimensioned to the existing 6×6 body without bonded flares or replaced bumpers.

Owners shopping a wide bolt-on programme for a regular W463 want a different page — the bonded-flares wide build is the W463 Wide Body kit. The closest analogue to the 6×6 programme is the G500 4×4² Soft Kit — the same restraint logic, applied to the four-wheel portal-axle sibling.

Why this car exists — Australian military spec to road-legal collector

The 6×6 began as a contract for the Australian Defence Force in 2007, when Mercedes-Benz Special Trucks built a six-wheel G-class on a stretched W461 chassis for off-road military use. The road-legal civilian version arrived in 2013 on the W463 chassis with a third axle borrowed from the military programme, an M157 5.5 V8 biturbo borrowed from the G63 AMG, and a portal-axle architecture lifted across all three axles. Mercedes priced the 6×6 at a level that limited the customer base to collectors and Gulf-market buyers — the run sold out by 2015 and Mercedes never restarted production. The cars trading hands now do so at multiples of original sticker.

What the 6×6 already brings — what the kit leaves alone

The factory specifications versus a regular W463 G63 AMG sit far apart. Mansory's programme accepts the chassis as-delivered.

The 6×6's chassis is fundamentally a stretched-and-axled W463 with the same M157 powertrain as the regular G63. That common engine is the reason a Mansory Powerbox lifts the 6×6 cleanly — it is the same module the firm offers for any M157-engined G-class.

Carbon parts — every Mansory piece on the bodywork

The kit is restrained by chassis logic rather than by Mansory's preference. There is no widebody added, because the body is already 2,100 mm wide. There is no fender flare, because the OEM fender already accommodates 37" rubber. The visible carbon set is:

• Vented bonnet pad — low-profile carbon overlay with two functional NACA cuts, painted body colour by default; lacquered visible weave is an option
• Side step extensions — extended carbon-tread running boards along the longer wheelbase, dimensioned to clear the portal-axle ride height
• Spare-wheel cover — flat carbon plate over the rear-mounted spare
• Mirror caps — visible weave only, electrical pass-through unchanged
• Rear bumper insert — diffuser-language carbon strip below the OEM rear apron
• Door handle covers — small detail piece in visible weave

None of this requires bodywork prep. Total fitment runs 4 to 6 hours at a Mansory-experienced shop, similar to a 4×4² Soft Kit. The kit can be reverted to factory in an afternoon if the car ever goes through a documented-collector resale, where some buyers prefer untouched OEM presentation.

Forged wheel set — six wheels, not four

Mansory specifies the M-series fully forged 22" wheel as the matched fitment. On the 6×6 that ships as a six-wheel set, not a four-wheel set, and the wheel package therefore prices roughly 50 percent higher than the 4×4² equivalent. The OEM 6×6 wheel is a 22" cast unit at significant unsprung mass — six wheels of a forged Mansory M-series trim approximately 25–30 kg total off the unsprung side, which on a 3,775 kg vehicle is small in proportion but does measurably soften the highway ride. Diamond black is the default finish; the wheel range lives at the forged wheel collection. Six-wheel TPMS pairing is supported with OEM Mercedes sensors — the 6×6 runs the same TPMS architecture as the W463 G63.

Powerbox + sport exhaust — the M157 numbers

The Powerbox is the same M157 module Mansory offers across the AMG-engined G-class range. Stock M157 in the 6×6 makes 544 PS / 760 Nm. With the Mansory Powerbox plus sport exhaust the channel goes to roughly 620 PS / 870 Nm — a +76 PS / +110 Nm gain. On a 3,775 kg vehicle the change is felt in mid-range torque rather than in 0–100 km/h time; the 6×6 was never a quick car against a clock, and Mansory does not pretend that more power changes that fundamental. The sport exhaust runs the OEM tip layout with a valved muffler — no header swap, no cat replacement.

Interior — narrow scope

The Mansory interior set is the same restraint logic as the bodywork: a sport steering wheel with carbon spoke-back, metal pedals, carbon inlays for the centre stack and door pulls. Seats, headlining, door cards stay OEM. The cabin on a 6×6 was already heavily Designo-trimmed by Mercedes from the factory, with two-tone leather and quilted hides standard — owners who want a different leather story typically commission that through Mercedes Manufaktur or an aftermarket trimmer rather than through the Mansory cabin programme.

Donor scope — only the M157 run

The kit fits the road-legal civilian 2013–2015 Mercedes-Benz G63 AMG 6×6 only. It does not fit:

• The original W461 6×6 military / civilian Australian Defence Force vehicle (2007–2013) — different chassis
• Brabus, Carlex Design or other tuner-built six-wheel G conversions on later W463A or W464 chassis — different geometry
• The W463 4×4² (covered by a separate Mansory soft kit)

Material and care notes for the lacquered carbon parts are documented in the carbon fibre care guide; general background on Mansory body kits sits in the complete body kit guide.

Worldwide shipping & quoting

The 6×6's surviving owner geography is concentrated — the Gulf states, a small Russian and Kazakhstani cohort, a handful of Hong Kong and Singapore registrations, and a few European collectors. Hodoor World ships pre-assembled crates with paint-pattern documentation to the UAE, Saudi Arabia, Qatar, Hong Kong and Monaco via DHL or DSV freight forwarding. Pricing on request via [email protected] or WhatsApp +44 7488 818747. Quotes specify the six-wheel forged set as a separate line item; lead time on six matched wheels typically runs longer than a four-wheel set due to forging-batch scheduling.

FAQ

Can the kit be specced without the six-wheel forged set?
Yes. Owners who keep OEM 22" 6×6 wheels can spec the carbon parts only — the bodywork programme is independent of the wheel choice. Most owners who go to the trouble of a Mansory build do spec the matched M-series forging though, because OEM 22" cast against Mansory carbon trim creates a visual mismatch the rest of the car corrects.

Does the Powerbox affect the AMG warranty?
The 6×6 is generally past its OEM warranty window in 2026 — the youngest cars built are over a decade old. Service is mostly handled by AMG-specialist independents at this point, and the Powerbox does not introduce any reliability concerns on the M157 powertrain that those shops cannot diagnose and reverse if needed.

Does the kit fit a Brabus 6×6 conversion?
No. Brabus and other aftermarket six-wheel conversions on later G-class chassis use different fender geometry, different bumper architecture and often different powertrains. The Mansory kit on this page is dimensioned to the factory G63 AMG 6×6 body only.

Can I run only some of the carbon parts and skip the others?
Yes. Each part is sold individually on quote. A common partial-spec build is bonnet pad plus side steps plus spare-wheel cover, leaving the rear bumper and door handles OEM — that build sits roughly 60 percent of full-kit cost and reads as a Mansory car at the kerb without committing to every panel.

Is the M157 powertrain serviceable in 2026?
Yes. The M157 5.5 V8 biturbo ran from 2010 to 2018 across the G63, GL63, ML63, S63 and a wider AMG family — parts supply through Mercedes is solid and AMG-specialist independents run them daily. The engine's known weak points (head bolts, valve cover gaskets, plastic intake manifold) are well-documented and addressed at routine service intervals.