The Infiniti G37 Convertible (V36) represents the open-top variant of Infiniti’s performance-oriented G37 model line, produced from 2009 to 2015. Positioned as a premium sports convertible, it offered a blend of luxury, performance, and distinctive styling. The G37 Convertible was built on the Nissan FM platform (front-midship), shared with other Nissan and Infiniti models of the era, including the 370Z. This specific configuration, featuring the 3.7-liter V6 engine paired with a seven-speed automatic transmission, served as a popular choice for buyers seeking a balance between spirited driving and everyday usability. It occupied the middle ground in the G37 lineup, offering more performance than the base models but remaining more accessible than potential future high-performance variants.
Technical Specifications
| Brand | Infiniti |
| Model | G |
| Generation | G37 Convertible (V36) |
| Type (Engine) | 3.7 V6 (320 Hp) Automatic |
| Start of production | 2009 |
| End of production | 2015 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 16.4 l/100 km (14.3 US mpg, 17.2 UK mpg, 6.1 km/l) |
| Fuel consumption (extra urban) | 8.3 l/100 km (28.3 US mpg, 34 UK mpg, 12 km/l) |
| Fuel consumption (combined) | 11.4 l/100 km (20.6 US mpg, 24.8 UK mpg, 8.8 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.4 sec |
| Acceleration 0 – 62 mph | 6.4 sec |
| Acceleration 0 – 60 mph | 6.1 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 5.9 kg/Hp, 168.6 Hp/tonne |
| Weight-to-torque ratio | 5.3 kg/Nm, 189.7 Nm/tonne |
| Power | 320 Hp @ 7000 rpm |
| Power per litre | 86.6 Hp/l |
| Torque | 360 Nm @ 5200 rpm (265.52 lb.-ft. @ 5200 rpm) |
| Engine Model/Code | VQ37VHR |
| Engine displacement | 3696 cm3 (225.54 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 4.9 l (5.18 US qt | 4.31 UK qt) |
| Coolant capacity | 8.5 l (8.98 US qt | 7.48 UK qt) |
| Kerb Weight | 1898 kg (4184.37 lbs.) |
| Trunk (boot) space (minimum) | 366 l (12.93 cu. ft.) |
| Fuel tank capacity | 80 l (21.13 US gal | 17.6 UK gal) |
| Length | 4660 mm (183.46 in.) |
| Width | 1852 mm (72.91 in.) |
| Height | 1400 mm (55.12 in.) |
| Wheelbase | 2850 mm (112.2 in.) |
| Front track | 1545 mm (60.83 in.) |
| Rear track | 1595 mm (62.8 in.) |
| Minimum turning circle | 11 m (36.09 ft.) |
| Drivetrain | Rear wheel drive |
| Number of gears | 7 |
| Gearbox type | Automatic transmission |
| Front suspension | Wishbone |
| Rear suspension | Independent multi-link suspension |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 225/45 R19; 245/40 R19 |
| Wheel rims size | 8.5J x 19; 9.0J x 19 |
Powertrain & Engine Architecture
The heart of the G37 Convertible is the VQ37VHR 3.7-liter V6 engine. This engine is a naturally aspirated powerplant known for its smooth power delivery and responsive character. The “VHR” designation stands for “Variable Valve Timing and lift with high response.” This advanced valvetrain system continuously adjusts valve timing and lift on both the intake and exhaust sides, optimizing engine performance across the rev range. Fuel delivery is managed by a multi-port fuel injection system. The engine produces 320 horsepower at 7,000 rpm and 265 lb-ft of torque at 5,200 rpm. The seven-speed automatic transmission, sourced from Jatco, features Adaptive Shift Control (ASC), which learns the driver’s habits and adjusts shift points accordingly. Manual shift mode is also available, offering drivers more control over gear selection. The transmission is designed to provide smooth and relatively quick shifts, complementing the engine’s power output.
Driving Characteristics
The G37 Convertible with the 3.7L V6 and automatic transmission delivers a refined yet engaging driving experience. While not as aggressively geared as a manual transmission version, the automatic provides ample acceleration. The 0-60 mph time is around 6.1 seconds, making it a competitive performer in its class. The automatic transmission’s shift points are generally well-chosen for everyday driving, prioritizing comfort and fuel efficiency. However, in more spirited driving situations, the transmission can sometimes feel slightly hesitant to downshift. The rear-wheel-drive layout contributes to a balanced feel, and the suspension provides a good compromise between ride comfort and handling precision. Compared to the six-speed manual transmission option, the automatic sacrifices some driver involvement but gains in ease of use, particularly in urban environments.
Equipment & Trim Levels
The G37 Convertible typically came well-equipped, even in its base form. Standard features included leather upholstery, power-adjustable front seats, a premium audio system, automatic climate control, and a power-retractable hardtop. Optional extras included navigation system, heated and cooled front seats, a rear spoiler, and upgraded interior trim materials. The Journey trim level added features like Bluetooth connectivity, a rearview camera, and a USB port. Sport packages were also available, adding features like sport-tuned suspension, paddle shifters, and unique styling cues. The interior design focused on a driver-centric layout with a clean and modern aesthetic.
Chassis & Braking
The G37 Convertible utilizes a front-midship platform, which positions the engine behind the front axle, contributing to improved weight distribution and handling balance. The front suspension features a double-wishbone design, while the rear utilizes an independent multi-link setup. This configuration provides a comfortable ride while maintaining good control. Braking duties are handled by ventilated disc brakes on all four wheels, with ABS (Anti-lock Braking System) standard. The rear brakes on some earlier models may have been drums, but most were upgraded to discs. The steering is a rack-and-pinion system, providing precise and responsive steering feel.
Market Reception & Comparison
The Infiniti G37 Convertible was generally well-received by automotive critics. It was praised for its stylish design, powerful engine, and comfortable interior. However, some reviewers noted that the automatic transmission could feel slightly sluggish at times. Compared to competitors like the BMW 3 Series Convertible and the Lexus IS Convertible, the G37 offered a compelling value proposition, providing similar levels of performance and luxury at a lower price point. Fuel economy was average for the segment, with combined fuel consumption around 20.6 US mpg. Reliability was generally good, although some owners reported minor issues with the power-retractable hardtop mechanism.
Legacy
The VQ37VHR engine has proven to be a durable and reliable powerplant, and the G37 Convertible remains a popular choice in the used car market. The automatic transmission, while not the sportiest option, has also demonstrated good long-term reliability. The G37 Convertible’s combination of performance, luxury, and style continues to appeal to buyers seeking an affordable and enjoyable open-top driving experience. Parts availability is generally good, and the car’s relatively simple mechanical design makes it relatively easy to maintain. The G37 Convertible represents a significant chapter in Infiniti’s history, showcasing the brand’s commitment to delivering engaging and well-rounded vehicles.
