The Infiniti Q60 I Coupe S 3.7 V6, produced from 2014 to 2016, represented a significant iteration of Infiniti’s luxury sports coupe. Positioned as a premium offering within the Q60 lineup, this variant focused on delivering a high-performance driving experience through its naturally aspirated 3.7-liter V6 engine. It served as a direct successor to the G37 Coupe, undergoing a substantial refresh in styling and technology. The Q60 I Coupe aimed to compete with established players in the luxury coupe segment, such as the BMW 4 Series and Audi A5, offering a blend of performance, comfort, and distinctive Japanese design. This specific S trim level was generally considered the performance-oriented version, sitting above base models and offering enhanced features and a more aggressive aesthetic.
Technical Specifications
| Brand | Infiniti |
| Model | Q60 |
| Generation | Q60 I Coupe |
| Type (Engine) | S 3.7 V6 (335 Hp) |
| Start of production | 2014 |
| End of production | 2016 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 13.8 l/100 km (17 US mpg, 20.5 UK mpg, 7.2 km/l) |
| Fuel consumption (extra urban) | 9.4 l/100 km (25 US mpg, 30.1 UK mpg, 10.6 km/l) |
| Fuel consumption (combined) | 11.8 l/100 km (19.9 US mpg, 23.9 UK mpg, 8.5 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 5 kg/Hp, 199.2 Hp/tonne |
| Weight-to-torque ratio | 4.6 kg/Nm, 217.6 Nm/tonne |
| Power | 335 Hp @ 7000 rpm |
| Power per litre | 90.6 Hp/l |
| Torque | 366 Nm @ 5200 rpm (269.95 lb.-ft. @ 5200 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | VQ37VHR |
| Engine displacement | 3696 cm3 (225.54 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 95.5 mm (3.76 in.) |
| Piston Stroke | 86 mm (3.39 in.) |
| Compression ratio | 11:1 |
| 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 | 9 l (9.51 US qt | 7.92 UK qt) |
| Kerb Weight | 1682 kg (3708.18 lbs.) |
| Max. weight | 2112 kg (4656.16 lbs.) |
| Max load | 430 kg (947.99 lbs.) |
| Fuel tank capacity | 75 l (19.81 US gal | 16.5 UK gal) |
| Length | 4666 mm (183.7 in.) |
| Width | 1824 mm (71.81 in.) |
| Height | 1394 mm (54.88 in.) |
| Wheelbase | 2850 mm (112.2 in.) |
| Front track | 1544 mm (60.79 in.) |
| Rear track | 1560 mm (61.42 in.) |
| Drag coefficient (Cd) | 0.32 |
| Minimum turning circle | 11.0 m (36.09 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears | 6 |
| Gearbox type | Manual transmission |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 225/45 R19 92W; 245/40 R19 94W |
| Wheel rims size | 19 |
Powertrain & Engine Architecture
The heart of the Q60 I Coupe S 3.7 V6 is the VQ37VHR engine, a 3.7-liter naturally aspirated V6. This engine is a member of Nissan/Infiniti’s highly regarded VQ engine family, known for its smooth operation and robust reliability. The “VHR” designation signifies Variable Valve Timing and lift control, enhancing both power and efficiency. The engine utilizes a multi-port fuel injection system, delivering fuel directly into the intake ports. The DOHC (Double Overhead Camshaft) valvetrain, with four valves per cylinder, further contributes to the engine’s breathing efficiency. The 6-speed manual transmission was standard on the ‘S’ trim, providing drivers with direct control over the engine’s power. The engine’s longitudinal mounting and rear-wheel-drive configuration contribute to a balanced weight distribution, enhancing handling characteristics.
Driving Characteristics
The Q60 I Coupe S 3.7 V6 with the manual transmission delivers a distinctly engaging driving experience. The 335 horsepower and 270 lb-ft of torque provide ample power for spirited acceleration. While not as brutally quick as some turbocharged competitors, the naturally aspirated engine offers a linear power delivery and a satisfying engine note. The 6-speed manual gearbox is well-matched to the engine’s characteristics, offering precise shifts and a direct connection to the drivetrain. The rear-wheel-drive layout contributes to a balanced feel, making the Q60 enjoyable on winding roads. Compared to potential automatic transmission equipped models, the manual version offers a more involved and sporty driving experience, appealing to enthusiasts.
Equipment & Trim Levels
The “S” trim level of the Q60 I Coupe was well-equipped, focusing on performance and aesthetics. Standard features included leather upholstery, heated front seats, a premium audio system, and a power-adjustable driver’s seat. Exterior features included unique alloy wheels, a sport-tuned suspension, and distinctive styling cues. Optional extras included a navigation system, a sunroof, and advanced safety features like lane departure warning and blind-spot monitoring. The interior design emphasized a driver-focused layout with a sporty steering wheel and aluminum pedal accents.
Chassis & Braking
The Q60 I Coupe S 3.7 V6 features a MacPherson strut front suspension and a multi-link rear suspension. The sport-tuned suspension, standard on the “S” trim, provides firmer damping and reduced body roll, enhancing handling. Ventilated disc brakes are used on all four wheels, providing ample stopping power. An Anti-lock Braking System (ABS) is standard, enhancing safety during emergency braking situations. The electric power steering offers precise and responsive steering feel.
Market Reception & Comparison
The Infiniti Q60 I Coupe S 3.7 V6 was generally well-received by automotive critics. It was praised for its stylish design, engaging driving dynamics, and comfortable interior. However, some critics noted that its fuel economy was relatively poor compared to turbocharged competitors. Compared to the base Q60 models, the “S” trim offered a significant performance upgrade and a more aggressive aesthetic. Compared to the automatic transmission versions, the manual transmission was favored by driving enthusiasts for its greater level of control and engagement. Reliability reports generally indicate good long-term reliability for the VQ37VHR engine, although routine maintenance is essential.
Legacy
The Infiniti Q60 I Coupe S 3.7 V6 remains a desirable vehicle in the used car market, particularly among enthusiasts who appreciate its naturally aspirated engine and engaging driving dynamics. The VQ37VHR engine is known for its durability and relatively straightforward maintenance. While fuel economy may not be its strongest suit, the Q60 I Coupe S offers a compelling combination of performance, style, and luxury, making it a viable alternative to its European competitors. Its continued presence on the used car market is a testament to its enduring appeal and the reputation of the VQ engine family.
