The Mercedes-Benz G-Class Cabriolet G 500 V8 (388 hp) 4MATIC, produced between 2010 and 2012, represents a unique blend of luxury, off-road capability, and open-air motoring within the iconic G-Wagen lineage. This variant, part of the W463 facelift generation, offered a powerful V8 engine paired with a seven-speed automatic transmission and a permanent all-wheel-drive system. It occupied the premium position within the Cabriolet range, offering the highest performance and most luxurious appointments available at the time. The G-Class, originally designed as a military vehicle, had successfully transitioned into a desirable luxury SUV, and the Cabriolet version further enhanced its exclusivity.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | G-Class |
| Generation | G-Class Cabriolet (W463, facelift 2008) |
| Type (Engine) | G 500 V8 (388 Hp) 4MATIC 7G-TRONIC |
| Start of production | 2010 |
| End of production | 2012 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Off-road vehicle, Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 20 l/100 km (11.8 US mpg, 14.1 UK mpg, 5 km/l) |
| Fuel consumption (extra urban) | 11.9 l/100 km (19.8 US mpg, 23.7 UK mpg, 8.4 km/l) |
| Fuel consumption (combined) | 14.9 l/100 km (15.8 US mpg, 19 UK mpg, 6.7 km/l) |
| CO2 emissions | 348 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0-100 km/h | 5.9 sec |
| Acceleration 0-60 mph | 5.6 sec |
| Maximum speed | 210 km/h (130.49 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 5.6 kg/Hp |
| Weight-to-torque ratio | 4.1 kg/Nm |
| Power | 388 Hp @ 6000 rpm |
| Torque | 530 Nm @ 2800-4800 rpm (390.91 lb.-ft. @ 2800-4800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 273.963 |
| Engine displacement | 5461 cm3 (333.25 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 98 mm (3.86 in.) |
| Piston Stroke | 90.5 mm (3.56 in.) |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 9 l (9.51 US qt | 7.92 UK qt) |
| Kerb Weight | 2155 kg (4750.96 lbs.) |
| Max. weight | 2850 kg (6283.17 lbs.) |
| Max load | 695 kg (1532.21 lbs.) |
| Trunk (boot) space (min) | 238 l (8.4 cu. ft.) |
| Trunk (boot) space (max) | 1580 l (55.8 cu. ft.) |
| Fuel tank capacity | 96 l (25.36 US gal | 21.12 UK gal) |
| Permitted trailer load (braked) | 2850 kg (6283.17 lbs.) |
| Permitted trailer load (unbraked) | 750 kg (1653.47 lbs.) |
| Length | 4257 mm (167.6 in.) |
| Width | 1760 mm (69.29 in.) |
| Width (including mirrors) | 2007 mm (79.02 in.) |
| Height | 1941 mm (76.42 in.) |
| Wheelbase | 2400 mm (94.49 in.) |
| Front track | 1475 mm (58.07 in.) |
| Rear track | 1475 mm (58.07 in.) |
| Ride height (ground clearance) | 205 mm (8.07 in.) |
| Minimum turning circle | 11.3 m (37.07 ft.) |
| Approach angle | 36° |
| Departure angle | 27° |
| Climb angle | 38.7° |
| Wading depth | 500 mm (19.69 in.) |
| Drivetrain | All wheel drive (4×4) |
| Gearbox | 7 gears, automatic transmission G-TRONIC |
| Front suspension | Coil spring, Rigid axle suspension |
| Rear suspension | Rigid axle suspension, Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Steering type | Cone worm with recirculation balls |
| Power steering | Hydraulic Steering |
| Tires size | 265/60 R18 |
| Wheel rims size | 7.5J x 18 |
INTRODUCTION
The 2010-2012 Mercedes-Benz G 500 Cabriolet, built on the W463 platform, represented the pinnacle of open-top G-Class luxury. The W463, introduced in 1990, was a significant evolution of the original G-Wagen, incorporating more comfort and refinement while retaining its legendary off-road prowess. The facelifted version, launched in 2008, brought updated styling, improved interior materials, and more powerful engine options. The G 500 Cabriolet, with its 5.5-liter V8 engine and 7G-TRONIC automatic transmission, was positioned as the top-tier offering for those seeking a unique and capable luxury vehicle. It was primarily sold in Europe and select international markets, with limited availability in the United States.
Powertrain & Engine Architecture
The heart of the G 500 Cabriolet is the M 273.963 5.5-liter naturally aspirated V8 engine. This engine, a mainstay of Mercedes-Benz’s performance lineup during the period, features a three-valve-per-cylinder design (two intake, one exhaust) and utilizes multi-port fuel injection. The engine produces 388 horsepower at 6000 rpm and 530 Nm (390.91 lb-ft) of torque between 2800 and 4800 rpm. The 7G-TRONIC seven-speed automatic transmission, known for its smooth shifting and efficiency, was standard. This transmission offered a blend of comfort and performance, with gear ratios optimized for both on-road cruising and off-road crawling. The engine’s longitudinal mounting and the permanent all-wheel-drive system contribute to the vehicle’s balanced handling and exceptional traction.
Driving Characteristics
The G 500 Cabriolet, despite its considerable weight (2155 kg / 4750.96 lbs), delivers surprisingly brisk performance. The 0-60 mph sprint takes approximately 5.6 seconds, and the top speed is electronically limited to 130.49 mph (210 km/h). The 7G-TRONIC transmission provides seamless gear changes, and the V8 engine offers ample torque throughout the rev range. Compared to the smaller displacement engines offered in the G-Class lineup, the G 500 provides a more effortless driving experience, particularly when fully loaded or tackling challenging terrain. While not as fuel-efficient as the smaller engines (14.9 l/100 km combined), the G 500’s performance and refinement justify the increased fuel consumption for many buyers. The automatic transmission, while convenient, doesn’t offer the same level of driver engagement as a manual gearbox.
Equipment & Trim Levels
The G 500 Cabriolet came standard with a high level of equipment, befitting its premium positioning. Standard features included leather upholstery, heated front seats, automatic climate control, a premium audio system, and parking sensors. The Cabriolet top was a manually operated soft top, offering a classic open-air experience. Optional extras included upgraded leather packages, wood trim, navigation system, and various off-road enhancements. The interior design was relatively conservative, reflecting the G-Class’s utilitarian origins, but with a focus on durability and functionality.
Chassis & Braking
The G-Class chassis is a robust ladder-frame construction, providing exceptional strength and rigidity. The suspension consists of coil springs and rigid axles front and rear, offering excellent articulation for off-road driving. Ventilated disc brakes are fitted on all four wheels, providing ample stopping power. The G 500 Cabriolet benefits from a heavy-duty suspension setup to cope with the added weight of the V8 engine and the demands of off-road use. Anti-lock braking system (ABS) is standard, enhancing safety and control in various driving conditions.
Market Reception & Comparison
The G 500 Cabriolet was generally well-received by automotive critics, who praised its unique combination of luxury, performance, and off-road capability. However, its high price tag and relatively poor fuel economy were often cited as drawbacks. Compared to other luxury SUVs of the time, the G 500 offered a more rugged and distinctive character. Against other G-Class variants, such as the G 350 or G 460, the G 500 provided a significant performance advantage, but at a higher cost. The G 500’s reliability was generally good, although maintenance costs could be substantial due to the complexity of the V8 engine and the vehicle’s specialized components.
Legacy
The 2010-2012 Mercedes-Benz G 500 Cabriolet remains a highly sought-after vehicle in the used car market. Its rarity, combined with its iconic status and robust build quality, has ensured strong resale values. The M 273 V8 engine, while known for its complexity, is generally considered reliable when properly maintained. The G 500 Cabriolet represents a unique chapter in the G-Class’s history, offering a blend of luxury, performance, and off-road capability that is difficult to replicate. It continues to appeal to collectors and enthusiasts who appreciate its distinctive character and enduring appeal.





