The Infiniti Q60 I Coupe IPL 3.7 V6 Automatic, produced for the 2014 and 2015 model years, represented a performance-oriented variant within the first generation (Q60 I Coupe) of Infiniti’s luxury coupe. Positioned as a step above the standard Q60 3.7, the IPL (Infiniti Performance Line) model aimed to bridge the gap between the base coupe and a potential future high-performance model. It was designed to appeal to drivers seeking a more engaging driving experience without sacrificing the Q60’s inherent comfort and refinement. The Q60 I Coupe itself was a rebadged version of the Nissan Skyline Coupe, primarily marketed in North America and select international markets.
Technical Specifications
| Brand | Infiniti |
| Model | Q60 |
| Generation | Q60 I Coupe |
| Type (Engine) | IPL 3.7 V6 (353 Hp) Automatic |
| Start of production | 2014 |
| End of production | 2015 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 12.4 l/100 km (19 US mpg) |
| Fuel consumption (extra urban) | 8.7 l/100 km (27 US mpg) |
| Fuel consumption (combined) | 10.7 l/100 km (22 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 4.9 kg/Hp |
| Weight-to-torque ratio | 4.6 kg/Nm |
| Power | 353 Hp @ 7400 rpm |
| Power per litre | 95.5 Hp/l |
| Torque | 374 Nm @ 5200 rpm (275.85 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 | 8.5 l (8.98 US qt | 7.48 UK qt) |
| Kerb Weight | 1715 kg (3780.93 lbs.) |
| Max. weight | 2112 kg (4656.16 lbs.) |
| Max load | 397 kg (875.24 lbs.) |
| Fuel tank capacity | 75 l (19.81 US gal | 16.5 UK gal) |
| Length | 4702 mm (185.12 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 | 7 |
| Gearbox type | Automatic transmission |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Tires size | 225/45 R19 92W; 245/40 R19 94W |
| Wheel rims size | 19 |
Powertrain & Engine Architecture
The heart of the Q60 IPL was the VQ37VHR 3.7-liter V6 engine. This engine, a member of Nissan’s highly-regarded VQ family, was specifically tuned for the IPL model to deliver 353 horsepower and 275 lb-ft of torque. The “VHR” designation indicated Variable Valve Timing and lift control, optimizing engine performance across the rev range. The engine utilized a multi-port fuel injection system and a dual overhead camshaft (DOHC) valvetrain. The IPL variant featured revised engine mapping and an improved exhaust system compared to the standard Q60 3.7, contributing to the power increase. The engine was mounted longitudinally in the front of the vehicle, driving the rear wheels. The transmission was a seven-speed automatic with manual shift mode, offering drivers some control over gear selection. This transmission was chosen for its balance of performance and smoothness, catering to the Q60’s luxury positioning.
Driving Characteristics
The Q60 IPL Automatic offered a noticeable improvement in driving dynamics compared to the standard Q60. While not a dedicated sports car, the increased horsepower and torque, combined with the responsive automatic transmission, provided brisk acceleration. The seven-speed automatic transmission featured relatively quick shifts, although it wasn’t as aggressively tuned as some dual-clutch transmissions found in competing vehicles. The gear ratios were optimized for both everyday driving and spirited performance. The IPL’s suspension was also tweaked, with stiffer springs and dampers, resulting in reduced body roll and improved handling. However, this did come at the expense of some ride comfort. Compared to a manual transmission Q60 3.7, the IPL Automatic offered convenience and ease of use, but sacrificed some driver engagement.
Equipment & Trim Levels
The Q60 IPL Automatic came standard with a comprehensive list of features. Interior appointments included sport seats upholstered in Monaco Red leather with Alcantara inserts, a unique IPL steering wheel, and aluminum pedal accents. Exterior features included a unique front fascia with a black mesh grille, side sills, a rear spoiler, and 19-inch alloy wheels. Standard technology included a touchscreen infotainment system, navigation, a premium audio system, and Bluetooth connectivity. Optional extras included a limited-slip differential, which further enhanced handling performance, and various cosmetic upgrades.
Chassis & Braking
The Q60 IPL utilized a MacPherson strut front suspension and a multi-link rear suspension. The IPL model received revised suspension tuning with stiffer springs and dampers, as mentioned previously. Braking duties were handled by ventilated discs at all four corners. The braking system was adequate for the car’s performance, providing confident stopping power. Anti-lock brakes (ABS) were standard. The steering system was an electric power steering rack and pinion, offering a reasonable level of feedback.
Market Reception & Comparison
The Infiniti Q60 IPL was generally well-received by automotive critics. It was praised for its improved performance, sporty handling, and luxurious interior. However, some reviewers noted that it didn’t quite live up to the expectations set by the “Performance Line” designation, and that it lacked the outright performance of some of its European rivals. Fuel economy was typical for a V6-powered coupe of its size, averaging around 22 mpg combined. Compared to the standard Q60 3.7, the IPL offered a more engaging driving experience, but at a higher price point. Compared to the higher-performance models from BMW or Audi, the Q60 IPL offered a more affordable alternative, but with slightly less refinement and performance.
Legacy
The Q60 IPL, despite its short production run, has gained a following among enthusiasts. The VQ37VHR engine is known for its reliability and durability, and the IPL’s unique styling and improved performance make it a desirable used car. While not a common sight on the road, well-maintained examples command a reasonable price in the used car market. The IPL served as a stepping stone for Infiniti, demonstrating their commitment to performance and paving the way for future performance-oriented models. The powertrain, while not without its age-related maintenance needs, has proven to be relatively robust, making the Q60 IPL a potentially rewarding ownership experience for those seeking a stylish and engaging coupe.
