The Mercedes G63 AMG 6×6 stands as a testament to automotive engineering prowess, a low-volume production marvel from 2013 to early 2015 that redefined off-road capability and luxury. This extraordinary vehicle combines a unique 6-wheel drive system with portal axles and substantial 37-inch tires, creating an off-roading experience unlike any other. Paired with a potent V8 turbo engine and an opulent leather-clad interior, this 6 Wheel Drive Mercedes Truck firmly positioned itself at the zenith of the luxury car market.
Delving into the Base of this 6×6 Beast
Rooted in the robust frame of the military G 6×6, this civilian version inherits a legacy of durability and off-road expertise. Powering this formidable machine is the AMG 5.5-liter V8 twin-turbo engine, unleashing a commanding 544 horsepower (400 kW) and 760 Nm of torque. This power is channeled through a 7-speed automatic gearbox and a 2-speed transfer case, distributing it effectively to the portal axles. A secondary transfer case is strategically positioned within the second axle, orchestrating a 60/40 power split between the rear axles, optimizing traction and control. Drivers can tailor the driving dynamics through the 7-speed gearbox with selectable modes: “Controlled Efficiency” (C), Sport (S), and Manual (M). The seamless communication between the engine and gearbox electronics allows for rapid and responsive gear changes, enhancing both on and off-road performance of this 6 wheel drive Mercedes truck.
Despite carrying the prestigious AMG badge, AMG’s direct involvement in the production was primarily focused on the V8 turbo engine and the high-end leather interior appointments. Mercedes strategically partnered with specialists like Magna, LeTech, and Oberaigner, leveraging their expertise. Magna, responsible for assembling the standard G-Class vehicles in Graz, Austria, played a key role in the 6×6’s production. LeTech, renowned for innovative automotive engineering, designed and manufactured the portal axles and the central tire inflation system, critical components for the vehicle’s exceptional off-road abilities. Oberaigner engineered the innovative second transfer case, enabling the sophisticated 6-wheel drive system that defines this Mercedes truck.
Fuel consumption for this high-performance 6 wheel drive Mercedes truck is quoted by Mercedes as combined: 19.6–11.2 l/100 km, with combined CO₂ emissions ranging from 459–295 g/km. The top speed is electronically limited to 160 km/h, a sensible precaution given its off-road focus and substantial size.
Suspension and Ride Dynamics of the 6×6
The suspension system of this 6 wheel drive Mercedes truck is meticulously engineered for both rugged terrain and surprisingly comfortable on-road manners. Coil springs are employed on all axles, ensuring robust articulation and load-bearing capacity. Notably, the rear axles lack a load-sharing mechanism; instead, Mercedes strategically utilizes different spring ratings on the second and third axles. This innovative approach results in a calculated 60/40 weight distribution across the rear axles, contributing to a reduced turning circle for such a large vehicle, enhancing maneuverability. The front two axles are equipped with uprated coil springs, borrowed from the armored 4×4 G-Wagon, further reinforcing the front end. Öhlins gas bypass shocks complete the suspension setup, providing exceptional damping and control across diverse driving conditions.
The Ingenious Central Tire Inflation System
A cornerstone of the 6 wheel drive Mercedes truck’s unparalleled off-road prowess is the integration of special 18” beadlock wheels coupled with a central tire inflation system. This system empowers the driver to drastically reduce tire pressure for optimal performance in soft sand and other challenging terrains. In such conditions, the ground pressure exerted by the vehicle’s tires is remarkably low, comparable to the footprint of an average person, maximizing traction and minimizing the risk of sinking. The central tire inflation system allows for rapid adjustment of tire pressure, transitioning from a low 0.5 bar (for soft sand) to 1.8 bar (for on-road driving) in under 20 seconds. This swift inflation and deflation are facilitated by the vehicle’s onboard compressor and four 20-liter air tanks, discreetly housed within the rear wheel arches. Operation of the central tire inflation system is conveniently controlled from the overhead console within the cabin.
Limited Sales and Exclusivity
The Mercedes G63 AMG 6×6 remains an exceptionally rare vehicle, with just over 100 units sold worldwide, each commanding a price of approximately €450,000. All of these initial models were produced in left-hand drive configuration, further enhancing their exclusivity in many markets. While officially all were left-hand drive, some sources indicate a very limited number, around 15 right-hand drive versions, were commissioned in Malaysia by the renowned tuner Brabus. These are believed to be conversions from left-hand drive models, reflecting the lengths enthusiasts went to acquire this unique 6 wheel drive Mercedes truck in right-hand drive markets.
The Tuning Scene and Customization
Despite its already stratospheric price tag and performance, the 6 wheel drive Mercedes truck became a canvas for renowned tuners to further elevate its power and luxury. Brabus, Mansory, Carlsson, and Dartz, among others, have presented modified versions boasting even higher horsepower figures. Tuning houses like Barbus pushed the output to 700 HP, while Mansory achieved a staggering 829-hp (618 kW / 1000 Nm). Carlsson offered a 630 HP / 900 Nm variant, and Dartz presented an extreme 1019 hp / 1000 Nm iteration. Given the G63’s foundation on the standard AMG V8 engine and 7-speed gearbox, most tuners applied their existing tuning packages for this engine, demonstrating the engine’s robust tuning potential. Engine modifications were frequently coupled with bespoke interior enhancements, featuring unique color schemes, extended leather upholstery, and exterior styling tweaks to further personalize these already exclusive vehicles. Dartz even created stretched wheelbase and armored versions of the G 63 AMG 6×6, pushing the boundaries of customization and luxury.
It’s noteworthy that the G63 AMG 6×6 was never officially available for sale in Europe, the US, or Australia, adding to its allure and desirability in these major automotive markets.
Technical Specifications at a Glance
- Engine: AMG 5.5-litre V8, 536 HP (544 ps/400 kW), 760 Nm torque
- Gearbox: 7-speed automatic
- Transfer Case: 2-speed (2.16:1 and 0.87:1 ratios)
- Differentials: 5, with locking capability
- Axles: Portal axles
- Wheelbase: 1-3 axles 4296 mm, 2-3 axles 1100 mm
- Height: 2210 mm
- Width: 2110 mm
- Weight (Empty): 3775 kg – 4105 kg (with full fuel tank)
Explore More
For further exploration of this incredible machine, numerous reviews and videos are available online, showcasing its capabilities and unique features.
Image Gallery
Promotional videos and test drives, such as those by Mercedes and Top Gear, offer a dynamic view of the 6 wheel drive Mercedes truck in action.
