The Infiniti Project Black S Prototype, unveiled in 2018, represents a bold exploration of high-performance hybrid technology within the luxury coupe segment. Based on the Infiniti Q60, the Project Black S was conceived as a rolling laboratory to investigate the potential of Formula 1-inspired hybrid powertrain technology for road-going vehicles. It wasn’t intended for mass production, but rather as a demonstrator of Infiniti’s engineering capabilities and a potential precursor to future performance models. The “Prototype 3.0” designation refers to the third iteration of the project, showcasing significant advancements over its predecessors. It sits as a halo vehicle, demonstrating the brand’s commitment to innovation and performance.
Technical Specifications
| Brand | Infiniti |
| Model | Project Black S |
| Generation | Project Black S Prototype |
| Type (Engine) | 3.0 V6 (571 Hp) Hybrid Automatic |
| Start of production | 2018 |
| Powertrain Architecture | FHEV (Full Hybrid Electric Vehicle) |
| Body type | Coupe |
| Seats | 2 |
| Doors | 2 |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4 sec |
| Acceleration 0 – 62 mph | 4 sec |
| Acceleration 0 – 60 mph | 3.8 sec |
| Weight-to-power ratio | 3.1 kg/Hp, 321.5 Hp/tonne |
| Weight-to-torque ratio | 3.7 kg/Nm, 267.5 Nm/tonne |
| Gross battery capacity | 4.4 kWh |
| Electric motor power (1) | 163 Hp |
| Electric motor power (2) | 41 Hp |
| System power | 571 Hp |
| Power | 405 Hp @ 6400 rpm |
| Power per litre | 135.1 Hp/l |
| Torque | 475 Nm @ 1600-5200 rpm, 350.34 lb.-ft. @ 1600-5200 rpm |
| Engine Model/Code | VR30 |
| Engine displacement | 2997 cm3, 182.89 cu. in. |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 86 mm, 3.39 in. |
| Piston Stroke | 86 mm, 3.39 in. |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-Turbo, Intercooler |
| Kerb Weight | 1776 kg, 3915.41 lbs |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 7 gears, automatic transmission |
| Front suspension | Double wishbone |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 275/30 R21; 295/30 R21 |
| Wheel rims size | 21 |
Powertrain & Engine Architecture
The heart of the Project Black S is the VR30DDTT 3.0-liter twin-turbocharged V6 engine, producing 405 horsepower. However, the true innovation lies in the integration of a dual-motor hybrid system derived from the Formula 1 energy recovery systems developed by the Renault Sport Formula One Team (Infiniti’s technical partner at the time). The system utilizes two Motor Generator Units (MGUs): one positioned directly on the crankshaft (MGU-K) and another integrated with the turbocharger (MGU-H). The MGU-K recovers kinetic energy under braking and during deceleration, storing it in a 4.4 kWh battery pack. This stored energy can then be deployed to provide an additional 163 horsepower, boosting the total system output to 571 horsepower. The MGU-H recovers exhaust heat energy, converting it into electrical power, which can be used to power the MGU-K or directly assist the engine. The engine employs direct fuel injection and sophisticated thermal management to maximize efficiency and performance. The seven-speed automatic transmission was specifically tuned to handle the increased power and torque output of the hybrid powertrain, with optimized shift points for both road and track conditions.
Driving Characteristics
The Project Black S delivers a uniquely engaging driving experience. The instant torque provided by the electric motors fills in the gaps in the turbocharger’s response, resulting in remarkably linear acceleration. The 0-60 mph sprint is achieved in approximately 3.8 seconds. The hybrid system doesn’t just add power; it also enhances the overall driving dynamics. The MGU-K provides a subtle but noticeable boost during corner exits, improving traction and responsiveness. Compared to the standard Q60 3.0t models, the Project Black S offers a significantly more aggressive and focused driving experience. While the standard Q60 prioritizes a balance of comfort and performance, the Project Black S is clearly geared towards enthusiasts seeking a high-performance coupe. The automatic transmission, while smooth, is programmed for quicker shifts in Sport mode, further enhancing the car’s dynamic capabilities.
Equipment & Trim Levels
As a prototype, the Project Black S wasn’t offered with traditional trim levels. However, it featured a comprehensive list of standard equipment focused on performance and luxury. The interior was heavily modified with carbon fiber trim, lightweight sport seats, and a unique steering wheel. Exterior enhancements included a more aggressive aerodynamic package, including a prominent rear wing, revised front and rear bumpers, and larger air intakes. The car also featured a bespoke exhaust system designed to optimize airflow and enhance the engine’s sound. Optional extras were largely focused on customization, allowing potential buyers to personalize the car’s appearance and performance.
Chassis & Braking
The chassis of the Project Black S was extensively modified to handle the increased power and torque. The suspension was upgraded with stiffer springs and dampers, and the stabilizer bars were thickened to reduce body roll. The braking system featured ventilated discs at all four corners, providing ample stopping power. The car’s lightweight construction, achieved through the use of carbon fiber and aluminum components, further contributed to its improved handling and performance. The rear-wheel-drive configuration and optimized weight distribution ensured a balanced and predictable driving experience.
Market Reception & Comparison
The Project Black S Prototype received overwhelmingly positive reviews from automotive journalists. Critics praised its innovative hybrid powertrain, impressive performance, and striking design. Compared to other high-performance coupes in its class, such as the Porsche 911 and BMW M4, the Project Black S offered a unique combination of hybrid technology and luxury. While the Porsche and BMW focused on traditional internal combustion engine performance, the Project Black S showcased the potential of hybrid technology to deliver comparable or even superior results. The fuel economy of the Project Black S was also noteworthy, considering its high power output. However, as a prototype, it wasn’t subject to the same rigorous testing and validation as production vehicles, raising some concerns about long-term reliability.
Legacy
The Infiniti Project Black S Prototype served as a valuable testbed for future hybrid technologies. While a production version never materialized, the knowledge and experience gained from the project informed Infiniti’s future development efforts. The Project Black S demonstrated Infiniti’s commitment to innovation and its willingness to explore new technologies. In the used car market, the Project Black S remains a highly sought-after collector’s item, representing a unique chapter in Infiniti’s history. The powertrain, while complex, has proven to be relatively reliable in the prototype, and the car’s unique design and performance characteristics continue to attract enthusiasts. It stands as a testament to Infiniti’s engineering ambition and a glimpse into the future of high-performance hybrid vehicles.
