The Mercedes-Benz G-Class Cabriolet G 500 V8 (296 hp) 4MATIC, produced from April 2007 to June 2008, 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, positioned as a premium offering within the G-Class range. It catered to buyers seeking a distinctive and capable vehicle that didn’t compromise on comfort or prestige. The G 500 Cabriolet stood out as the most powerful engine option available in the open-top G-Class configuration during its production run.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | G-Class |
| Generation | G-Class Cabriolet (W463, facelift 2007) |
| Type (Engine) | G 500 V8 (296 Hp) 4MATIC 7G-TRONIC |
| Start of production | April, 2007 |
| End of production | June, 2008 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Off-road vehicle, Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 20.6 l/100 km (11.4 US mpg, 13.7 UK mpg, 4.9 km/l) |
| Fuel consumption (extra urban) | 12.5 l/100 km (18.8 US mpg, 22.6 UK mpg, 8 km/l) |
| Fuel consumption (combined) | 15.5 l/100 km (15.2 US mpg, 18.2 UK mpg, 6.5 km/l) |
| CO2 emissions | 370 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 7.3 sec |
| Acceleration 0 – 62 mph | 7.3 sec |
| Acceleration 0 – 60 mph | 6.9 sec |
| Maximum speed | 190 km/h (118.06 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 7.3 kg/Hp, 136.1 Hp/tonne |
| Weight-to-torque ratio | 4.8 kg/Nm, 209.7 Nm/tonne |
| Power | 296 Hp @ 5500 rpm |
| Torque | 456 Nm @ 2800-4000 rpm (336.33 lb.-ft. @ 2800-4000 rpm) |
| Maximum engine speed | 6000 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 113.962 |
| Engine displacement | 4966 cm3 (303.04 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 97 mm (3.82 in.) |
| Piston Stroke | 84 mm (3.31 in.) |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 3 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | SOHC |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant | 12 l (12.68 US qt | 10.56 UK qt) |
| Kerb Weight | 2175 kg (4795.05 lbs.) |
| Max. weight | 2850 kg (6283.17 lbs.) |
| Max load | 675 kg (1488.12 lbs.) |
| Trunk (boot) space – minimum | 238 l (8.4 cu. ft.) |
| Trunk (boot) space – maximum | 1580 l (55.8 cu. ft.) |
| Fuel tank capacity | 96 l (25.36 US gal | 21.12 UK gal) |
| Permitted trailer load with brakes (12%) | 2850 kg (6283.17 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 115 kg (253.53 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 (Back) track | 1475 mm (58.07 in.) |
| Ride height (ground clearance) | 205 mm (8.07 in.) |
| Minimum turning circle (turning diameter) | 11.3 m (37.07 ft.) |
| Approach angle | 34° |
| Departure angle | 26° |
| Ramp-over (brakeover) angle | 23° |
| Climb angle | 38.7° |
| Wading depth | 500 mm (19.69 in.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives permanently the four wheels of the vehicle. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 7 gears, automatic transmission G-TRONIC |
| Front suspension | Coil spring, Rigid axle suspension, Trailing arm |
| Rear suspension | Rigid axle suspension, Trailing arm, Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Power steering | Hydraulic Steering |
| Tires size | 265/60 R 18 |
| Wheel rims size | 7.5 J x 18 |
INTRODUCTION
The G 500 Cabriolet, introduced as part of the W463 facelift in 2007, combined the rugged appeal of the G-Class with the open-air experience of a convertible. The facelift brought updated styling, improved interior appointments, and refinements to the powertrain. This variant occupied the top-tier position within the Cabriolet range, offering a significant performance upgrade over the G 320 CDI diesel model. It was designed for customers who desired a luxurious and capable off-roader that could also turn heads on the road.
Powertrain & Engine Architecture
At the heart of the G 500 Cabriolet lies the M 113.962 5.0-liter naturally aspirated V8 engine. This engine, a staple of Mercedes-Benz performance models, produced 296 horsepower at 5500 rpm and 456 Nm (336.33 lb-ft) of torque between 2800 and 4000 rpm. The engine featured a three-valve-per-cylinder SOHC valvetrain and multi-port fuel injection. The M 113 engine family was known for its robust construction and smooth power delivery. Paired with the engine was the 7G-TRONIC seven-speed automatic transmission, which provided seamless gear changes and contributed to both performance and fuel efficiency. The 7G-TRONIC allowed for closer gear ratios, optimizing engine performance across a wider range of driving conditions.
Driving Characteristics
The G 500 Cabriolet offered a unique driving experience. While possessing the considerable weight of the G-Class chassis, the V8 engine provided ample power for both on-road and off-road driving. Acceleration from 0 to 60 mph was achieved in approximately 6.9 seconds, and the vehicle had a top speed of 190 km/h (118 mph). The 7G-TRONIC transmission helped to mask some of the vehicle’s bulk, providing quick and responsive shifts. Compared to the diesel-powered G 320 CDI, the G 500 offered significantly more responsive acceleration and a more refined driving experience. However, the V8’s thirst for fuel was considerably higher. The G-Class’s legendary off-road prowess remained intact, thanks to its full-time four-wheel-drive system and robust suspension.
Equipment & Trim Levels
The G 500 Cabriolet came standard with a high level of equipment, befitting its premium positioning. Standard features included leather upholstery, automatic climate control, power-adjustable seats, and a premium audio system. Optional extras included features such as heated seats, a sunroof, and various customization options for interior trim and exterior paint. The Cabriolet also featured a power-operated soft top, allowing for quick and convenient transitions between open-air and enclosed driving. The interior design reflected the G-Class’s utilitarian roots, but with added touches of luxury and refinement.
Chassis & Braking
The G 500 Cabriolet utilized a robust ladder-frame chassis, a hallmark of the G-Class design. The suspension consisted of coil springs and rigid axles with trailing arms, providing excellent articulation for off-road driving. The braking system featured ventilated discs at the front and solid discs at the rear, along with ABS (Anti-lock Braking System) for enhanced safety. The vehicle’s substantial weight necessitated a capable braking system, and the G 500 delivered adequate stopping power for its class.
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 considerable fuel consumption were often noted. Compared to the G 320 CDI Cabriolet, the G 500 offered a more exhilarating driving experience but at the cost of fuel economy. The G 500 appealed to buyers who prioritized performance and exclusivity over practicality and efficiency.
Legacy
The W463 facelift G 500 Cabriolet remains a sought-after vehicle among collectors and enthusiasts. The M 113 V8 engine is known for its reliability, although regular maintenance is essential. The G-Class’s iconic design and robust construction have ensured its enduring appeal. Today, well-maintained examples of the G 500 Cabriolet command premium prices in the used car market, reflecting its rarity and desirability. It represents a unique chapter in the G-Class’s history, blending the ruggedness of an off-road vehicle with the luxury of a convertible.
