The Infiniti G37 Coupe, produced from 2009 to 2015, represents the second generation of Infiniti’s G series, known internally as the V36 chassis. This generation marked a substantial evolution from the G35, emphasizing enhanced performance and a more assertive design language. The pairing of the 3.7-liter V6 engine with a seven-speed automatic transmission proved to be a popular configuration, offering a balance of power and convenience specifically tailored for the North American market. Within the G37 lineup, this variant occupied a mid-range position, situated between the more basic models and the higher-performance options like those equipped with a manual transmission, and the later, more focused Infiniti Performance Line (IPL) models.
Technical Specifications
| Brand | Infiniti |
| Model | G |
| Generation | G37 Coupe (V36) |
| Type (Engine) | 3.7 V6 (320 Hp) Automatic |
| Start of production | 2009 |
| End of production | 2015 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 15.3 l/100 km (15.4 US mpg, 18.5 UK mpg, 6.5 km/l) |
| Fuel consumption (extra urban) | 7.8 l/100 km (30.2 US mpg, 36.2 UK mpg, 12.8 km/l) |
| Fuel consumption (combined) | 10.5 l/100 km (22.4 US mpg, 26.9 UK mpg, 9.5 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.9 sec |
| Acceleration 0 – 62 mph | 5.9 sec |
| Acceleration 0 – 60 mph | 5.6 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 5.4 kg/Hp, 186.2 Hp/tonne |
| Weight-to-torque ratio | 4.8 kg/Nm, 209.4 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 | 1719 kg (3789.75 lbs) |
| Trunk (boot) space (minimum) | 275 l (9.71 cu. ft.) |
| Fuel tank capacity | 80 l (21.13 US gal | 17.6 UK gal) |
| Length | 4655 mm (183.27 in) |
| Width | 1820 mm (71.65 in) |
| Height | 1395 mm (54.92 in) |
| Wheelbase | 2850 mm (112.2 in) |
| Front track | 1545 mm (60.83 in) |
| Rear track | 1560 mm (61.42 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 |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 225/50 R18; 245/45 R18; 225/45 R19; 245/40 R19 |
| Wheel rims size | 18; 19 |
Powertrain & Engine Architecture
The core of the G37 Coupe Automatic is the VQ37VHR 3.7-liter V6 engine. This engine is naturally aspirated, meaning it doesn’t rely on forced induction like turbocharging or supercharging. The “VHR” designation signifies “Variable Valve Timing and lift with high response.” This sophisticated valvetrain system provides precise control over valve timing and lift, optimizing engine performance throughout the entire rev range. The engine employs a multi-port fuel injection system, delivering fuel directly into the intake ports. The VQ37VHR generates 320 horsepower at 7,000 rpm and 265 lb-ft of torque at 5,200 rpm. Complementing this engine is a seven-speed automatic transmission, offering smooth and relatively swift gear changes. This transmission incorporates adaptive shift control, which learns the driver’s driving style to optimize gear selection. The transmission’s gear ratios are calibrated for a balance between acceleration and fuel economy, featuring a relatively tall final drive ratio for comfortable highway cruising.
Driving Characteristics
The G37 Coupe Automatic provides a refined and engaging driving experience. While it doesn’t offer the same level of driver engagement as the six-speed manual version, the automatic transmission delivers seamless power delivery and makes the car more practical for daily driving. Acceleration from 0-60 mph is achieved in approximately 5.6 seconds, making it a quick vehicle within its class. The automatic transmission’s shift points are generally well-timed, although they can occasionally feel slightly hesitant during more aggressive driving maneuvers. The rear-wheel-drive configuration contributes to a balanced chassis and predictable handling characteristics. The steering is precise and well-weighted, providing the driver with good road feel. Compared to the manual transmission G37, the automatic version trades some driver involvement for increased ease of use and overall comfort.
Equipment & Trim Levels
The G37 Coupe Automatic came generously equipped, even in its base configuration. Standard features included leather upholstery, power-adjustable front seats, a premium audio system, automatic climate control, and a rearview camera. Higher trim levels, such as the Journey and Premium packages, added features like a navigation system, heated and cooled front seats, a power-adjustable steering column, and a sunroof. Optional extras included a limited-slip differential, upgraded brakes, and various cosmetic enhancements. Interior upholstery options typically included black leather, gray leather, and wheat leather. The dashboard layout was designed with the driver in mind, featuring a clear and intuitive arrangement of controls.
Chassis & Braking
The G37 Coupe features a robust chassis with a double-wishbone front suspension and an independent multi-link rear suspension. This suspension setup delivers a comfortable ride while maintaining commendable handling capabilities. The car’s weight distribution is close to 53/47 front to rear, contributing to its balanced handling. Braking is provided by ventilated discs on all four wheels, offering ample stopping power. An Anti-lock Braking System (ABS) is standard, enhancing safety and control during emergency braking situations. Base models typically came with 18-inch wheels, while higher trim levels offered 19-inch wheels paired with wider tires.
Market Reception & Comparison
The Infiniti G37 Coupe was generally well-received by automotive reviewers. It was lauded for its powerful engine, refined handling, and luxurious interior. The automatic transmission was considered a good compromise between performance and convenience. However, some critics pointed out that the fuel economy wasn’t particularly impressive, especially considering the engine’s displacement. When compared to competitors like the BMW 3 Series Coupe and the Audi A5 Coupe, the G37 offered a compelling value proposition, with more standard features and a lower price point. The earlier 1.8L automatic versions of the G35 (the G37’s predecessor) were often criticized for feeling underpowered, making the 3.7L a significant improvement in terms of performance.
Legacy
The Infiniti G37 Coupe, and particularly the 3.7-liter V6 Automatic variant, has proven to be a relatively reliable vehicle. The VQ37VHR engine is well-regarded for its durability and longevity, provided it receives regular maintenance. Common maintenance requirements include routine oil changes, coolant flushes, and spark plug replacements. While some owners have reported occasional issues with the automatic transmission, these are generally infrequent. Today, the G37 Coupe remains a popular choice in the used car market, offering a blend of performance, luxury, and affordability. Its sporty styling and engaging driving dynamics continue to appeal to automotive enthusiasts.
