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Toyota GR GT: A real racecar for everyday driving

[All images courtesy of Toyota]

 

 

Toyota Gazoo Racing unveiled its new flagship super sports car last Friday, and it's a stunner. The GR GT is a road-legal race car that's a 640-hp+ lean, mean, driving machine -- and Toyota will sell its real racecar version, the GR GT3, too.

Positioned as next-gen halo cars in the footsteps of the Toyota 2000GT of yesteryear, Toyota says one of the aims of the development of the GR GT and GR GT3 was to "preserve and pass on 'the secret sauce of car-making' to the next generation of its car makers." The two models are the result of veterans of development transferring skills and techniques to the company's younger members while integrating the active adoption of new, Toyota-first technologies for enhanced vehicle performance and taking on new challenges. Paramount for the designers of the GR GT was a driver-first approach.

The GR GT road car is equipped with a hybrid system that pairs a newly developed 4.0-liter, V8 twin-turbo engine and a single electric motor. In addition to maximum system output of 640 hp or greater and maximum system torque of 850 Nm or greater (development target values) for overwhelming performance, unrelenting focus was given to the three key areas of a low center of gravity, low weight with high rigidity, and the pursuit of aerodynamic performance. Toyota says the front-engine, rear-wheel-drive powertrain layout provides ease of handling "when driving the vehicle to its limit." The center of gravity of heavy components, such as the engine, rear-mounted transaxle, and other major mechanisms, has been significantly lowered through optimized positioning.

With a bore and stroke of 87.5 x 83.1, the engine's short stroke reduces overall engine height, while its hot-V configuration positions one of its two turbos in each engine bank. The engine also features dry-sump lubrication and an oil pan that has been made thinner than usual. The engine's power is transmitted to the rear transaxle via a CFRP torque tube. In addition to a motor-generator, the transaxle integrates a newly developed 8-speed automatic transmission, which uses a wet-start clutch in place of a torque converter, and a mechanical limited-slip differential. The adoption of a rear transaxle and the optimal placement of the drive battery, fuel tank, and other heavy components have resulted in a 45:55 front-to-rear weight distribution, contributing to ease of vehicle handling.

The GR GT also marks the adoption of the first all-aluminum body frame by Toyota. The car's styling was developed under an "aerodynamics first" concept in which aerodynamics engineers and exterior designers worked as a single team. With the GR GT boasting a top speed in excess of 199 mph, aerodynamic performance was one of the most vital concerns. Whereas in conventional production vehicle development exterior styling is set before consideration of aerodynamic efficiency and cooling performance, the GR GT envisioned as a road-legal race car required a rethinking of the process.

Aerodynamics engineers experienced in FIA WEC competition vehicle development joined the GR GT development team and engaged in thorough discussions with vehicle designers, leading to the establishment of overall vehicle packaging based on a model that represented the aerodynamic design team's proposal for the ideal form. It was only after such considerations that exterior designers prepared design sketches with mass production in mind, eventually leading to finalization of vehicle styling in a process that was the reverse of the normal approach.

The suspension features a newly designed, low-mounted double-wishbone system with forged aluminum arms at both the front and rear. Its characteristics were developed from scratch, with a focus on linear response and a high level of controllability, from everyday use to at-the-limit driving. The tires are Michelin Pilot Sport Cup 2 tires developed exclusively for the GR GT.

Brembo carbon discs are used in the brakes, and vehicle behavior control during braking was developed together with professional drivers. The GR GT's Vehicle Stability Control system allows multi-stage adjustment of driving force and braking control, enabling driver selection of the vehicle control difficulty level based on driving skill and weather conditions. This setup is also used in TGR's Nürburgring 24-hour endurance race vehicles and is an example of technology honed through competing in motorsports. Additionally, the basic structures of the aluminum space-frame chassis and front-and-rear double-wishbone suspension system have been developed so that many of their components can be shared with the GR GT3 (the real race car).

Sound development was centered on two pillars: creating sound that enables interaction with the car and creating sound that conveys changes in thermal energy. The structure of the exhaust pipe has been meticulously crafted to produce sound that synchronizes with the state of the vehicle.

Inside, the styling is centered on prioritizing driving position and visibility above all else. The goal was an interior setup that would be suitable for both professional and gentleman drivers, as well as for both circuit and daily use.

Pursuit of the ideal driving position, coupled with consideration of interior styling, renewed awareness of the importance of ensuring sufficient visibility, as well as a sense of being protected. Particular attention was paid to excellent operability, with driving-related switches placed near the steering wheel and positioned and shaped for intuitive operation.

For ease of visual recognition even during circuit driving, substantial focus was also given to the gauges, for which the width, height, and position of information displays, such as the shift-up and gear selection indicators, were determined through a process of trial and error.

When will the Toyota GR GT be available, and how much will it cost? Great questions, but we don't know that yet. This vehicle is not a concept. It will be made soon.

GR GT3 racecar (left) and the GR GT road car (right).

 

 

Source: Toyota

Published December 2025

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