The New NSX: A Hybrid Supercar Reimagined

For decades, the Acura NSX stood as a benchmark in the supercar world. Launched in 1991, this all-aluminium, mid-engined marvel shattered perceptions. It proved that exotic performance and stunning aesthetics could go hand-in-hand with reliability, exceptional handling, and ergonomic design. The original NSX was a technological tour de force, boasting innovations like four-channel ABS, titanium con-rods, and electric power steering, all wrapped in a package of renowned Japanese quality. Its legacy is undeniable, leaving a void when production ceased in 2005.

The automotive world has keenly awaited a successor, a worthy heir to the NSX name. While a front-engine V-10 concept, the Advanced Sports Car Concept, was developed by Acura Design, it was widely felt that this iteration, though impressive, didn't quite capture the soul of the original NSX. However, the car you see here, the new NSX, is poised to carry that torch. Expected by 2015, this next-generation NSX is not just a revival; it's a radical reimagining, embracing cutting-edge hybrid technology while staying true to the core principles that made the original so special.

A Hybrid Powertrain for the Modern Era

At the heart of the new NSX lies a sophisticated hybrid powertrain. Gone is the naturally aspirated V-6 of its predecessor, replaced by a mid-mounted V-6 engine. This powerhouse is mated to a wet twin-clutch seven-speed transmission, a testament to modern engineering. But the true innovation comes with the integration of electric motors. A primary electric motor drives the rear wheels, working in tandem with the V-6, while two additional electric motors are dedicated to powering the front wheels. This intricate setup forms Acura's Sports Hybrid AWD system.

This advanced system promises a compelling blend of performance and efficiency. Acura claims it will deliver performance comparable to a big V-8 engine, yet achieve fuel economy superior to that of a four-cylinder unit. This suggests a significant leap in powertrain technology, likely utilising high-output electric motors and advanced battery management to achieve this ambitious goal. The focus is on delivering exhilarating acceleration and responsive handling, all while minimising environmental impact.

Engineering Challenges and Weight Distribution

The original NSX was lauded for its lightweight, all-aluminium construction. A pertinent question arises: will the new NSX continue this tradition? Honda's global CEO, Takanobu Ito, who began his career as an engineer on the original NSX's aluminium monocoque structure, highlighted a different priority. For him, the greater challenge was for the engineering team to offset the added mass of the hybrid drivetrain. This implies that while aluminium might still play a role, the engineering focus is on overcoming the inherent weight penalty of hybrid components.

When pressed about weight-to-power targets, Ito remained coy, expressing only a hope that the new car would surpass the first. Given that the original NSX achieved a remarkable 11 lb/horsepower, matching Ferrari's 348 of the era, this sets a high bar. If the new NSX is to match contemporary rivals like the Ferrari 458 Italia and Lamborghini Gallardo, which hover around 6 lb/horsepower, Ito's engineers have a monumental task ahead. Achieving this will require not only a powerful V-6 and potent electric motors but also meticulous weight management throughout the vehicle's construction.

Design Philosophy: Keen Edge Meets Aerodynamics

Visually, the new NSX concept showcases Acura's evolving design language, often referred to as Keen Edge. This design philosophy aims for a sharp, sculpted, and athletic appearance. Dimensionally, the new NSX is slightly more compact in length than its 2005 predecessor, measuring 3.7 inches shorter. However, it boasts a 1.8-inch longer wheelbase, resulting in reduced overhangs and a more planted stance. It's also wider by 3.3 inches and lower by 0.4 inches, contributing to a more aggressive and aerodynamic profile.

The concept rides on substantial wheels, with 255/35-19 tyres at the front and 275/30-20 tyres at the rear. The low-profile headlamps are LED-based, exuding a modern and high-tech aesthetic. While the concept car lacks a detailed interior, design chief Jon Ikedo anticipates clever packaging solutions. The battery is expected to be housed within the centre tunnel, with luggage compartments strategically placed fore and aft. To maintain optimal weight distribution as the fuel level fluctuates, the fuel tank is envisioned to sit just ahead of the engine, mirroring the layout of the original.

Development and Manufacturing

With production slated for "within three years" of the concept's unveiling, the design is still subject to rigorous testing. Early indications from scale-model clay prototypes in wind tunnel testing have been positive, suggesting good aerodynamic efficiency. However, Ikedo cautions that the essential process of crash development is likely to influence the final dimensions, potentially increasing the car's overall size somewhat. Significantly, all of this development work, including the crucial crash safety engineering, is being undertaken in the USA, and the production of the new NSX will take place in Ohio. This commitment underscores Acura's dedication to bringing this iconic supercar to life with American engineering and manufacturing prowess.

Man-Machine Synergy: The Core Principle

Acura positions the next NSX as the "ultimate expression of man-machine synergy." This philosophy emphasizes a harmonious partnership between the driver and the car, where the vehicle enhances the driver's capabilities rather than overwhelming them with electronic interventions. In a world where many performance cars are becoming increasingly automated, the NSX aims to retain a visceral connection between the pilot and the tarmac.

A three-motor, mid-engine supercar sounds like the perfect halo car for a brand seeking to establish itself as a purveyor of luxury and performance without extravagance. It has the potential to disrupt the established order of the supercar segment once again. However, the ultimate success of this ambitious project hinges on one critical factor: the programming of its sophisticated electronics. The hope is that Ito's engineers can fine-tune these systems to deliver a realistic, engaging road feel, rather than a sterile, robotic experience. The driver's enjoyment and connection to the driving experience must remain paramount.

Innovative Drivetrain Technology

While hybrid powertrains are becoming more common, the NSX's approach to its hybridised twin-clutch transmission is particularly noteworthy. Unlike some other hybrid systems, the NSX's electric motor is connected to a gear shaft rather than directly to the input shaft. This seemingly subtle difference has significant implications.

By allowing both clutches to disengage simultaneously, the system can regenerate more energy without the hindrance of engine braking. Furthermore, by connecting the electric motor to the gear with the most advantageous ratio, the system can optimise power delivery and efficiency. During acceleration, power can be transmitted through a pre-selected odd gear even when an even gear is engaged in the transmission. This sophisticated management of power flow, seamlessly blending the V-6 engine and electric motors, is key to achieving the NSX's promised performance and efficiency targets.

Frequently Asked Questions

Q1: Has the original NSX been officially replaced?
Yes, Acura has developed a successor to the original NSX, which is expected to go into production soon. It represents a significant technological departure, embracing hybrid power.

Q2: What kind of engine will the new NSX have?
The new NSX will feature a mid-mounted V-6 engine, coupled with a three-motor hybrid system.

Q3: What is the primary innovation of the new NSX's powertrain?
The key innovation is the Sports Hybrid AWD system, which uses a V-6 engine and three electric motors to provide all-wheel drive, torque vectoring, and a blend of high performance with improved fuel efficiency.

Q4: Will the new NSX be made of aluminium like the original?
While the original was all-aluminium, the focus for the new NSX is on offsetting the weight of the hybrid drivetrain. The use of aluminium is likely, but the exact material composition and weight-saving strategies are still being refined.

Q5: Where will the new NSX be developed and built?
The development and building of the new NSX will take place in the USA, with production slated for Ohio.

Q6: What is the design philosophy behind the new NSX?
The design follows Acura's "Keen Edge" philosophy, aiming for a sharp, athletic, and aerodynamic appearance, while the core principle of the car is "man-machine synergy," focusing on driver engagement.