Comparison between GR SUPRA GT4 and GR SUPRA

On the automotive stage, Toyota GR SUPRA GT4 and GR SUPRA are like twin stars, each shining with its own unique brilliance. They are closely connected, but also show distinct differences in many aspects. Today, let us compare these two models in depth and explore their unique charm in different dimensions.

Exhaust system: the division between track and road

The exhaust system of GR SUPRA is designed to take into account the comfort and environmental protection requirements of daily driving. Its dual exhaust pipe layout on both sides not only presents a symmetrical beauty visually, but also ensures efficient exhaust and diffusion of exhaust gas under different working conditions. In contrast, the exhaust system of GR SUPRA GT4 is completely oriented towards track performance. In order to cope with the high-speed and high-load operating conditions in the racing environment, GT4 adopts a single-side single-exhaust pipe design. This design not only helps to lower the center of gravity of the vehicle, but also optimizes the aerodynamic performance of the rear of the vehicle when driving at high speed, reduces air resistance, and improves the stability and speed performance of the vehicle.

Suspension system: exclusive upgrade on a common basis

The suspension systems of the two vehicles are consistent in geometric structure, providing a stable control foundation for the vehicle. However, in order to adapt to the intense driving needs of the track, the GR SUPRA GT4 has deeply upgraded its suspension system. Its shock absorbers and springs have been replaced with variable accessories with the function of adjusting the vehicle height, so that the car can find the best suspension settings under different track conditions. In addition, the rubber bearings are replaced by spherical bearings, which further improves the handling accuracy and ensures that the vehicle can maintain accurate steering response when cornering at high speed and changing lanes urgently.

Engine and ECU: The heart and brain of power

Both models are equipped with a 3.0L inline six-cylinder DOHC twin-scroll turbocharged engine (B58 model), which has high durability and excellent power output. But the GR SUPRA GT4 further stimulates the potential of the engine through a dedicated ECU tuning. Under the premise of complying with the racing standards, the GT4's engine output power can reach 320kW (430ps) and the torque is as high as 650N·m (66.3kgf·m). This precise tuning enables the GT4 to respond quickly to the driver's operation on the track, whether it is accelerating overtaking or emergency braking, it can show excellent power performance.

Interior: Choice between road comfort and track functionality

GR SUPRA's interior focuses on driving comfort and daily practicality, equipped with rich technological configurations and high-quality interior materials to create a comfortable driving environment for drivers and passengers. The interior of the GR SUPRA GT4 is designed entirely around the needs of racing. All sound insulation and sound-absorbing materials and carpets have been removed from the car, which not only reduces the weight of the car body, but also improves the fire resistance. The sturdy roll cage provides all-round safety protection for the driver, and the unique racing steering wheel is equipped with multiple control switches for the driver to operate quickly at high speeds. Despite this, the GT4 car still retains the air conditioning system, but it is replaced with a racing air conditioner to ensure that the driver can maintain a comfortable driving environment even in fierce competition.

Body design: Details of the same size

In terms of body size, the GR SUPRA GT4 is basically the same as the mass-produced model, but there are obvious differences in details. The GT4 car adds a rear wing and cooling system designed specifically for racing to improve the vehicle's aerodynamic performance and heat dissipation efficiency. In addition, in order to achieve lightweight body and improve safety, the windows of GT4 racing car are made of polycarbonate, and the fuel tank is also replaced with a special fuel tank that meets FIA standards. These adjustments in details make GT4 more competitive on the track.

Drive system: precise matching under software control

In terms of drive system, GT4 racing car maintains a high degree of consistency with mass-produced models. However, in order to adapt to the special needs of racing cars, the gearbox is adjusted from 8 speeds to 7 speeds through software control. This adjustment not only meets the FIA's regulations on GT4 racing cars, but also better matches the high-performance output of racing cars. In addition, GT4 racing cars use a reinforced version of racing-specific drive shafts, and the internal differential is replaced with a mechanical LSD (limited slip differential), which further improves the vehicle's handling performance on the track.

Perfect fusion of road and track

GR SUPRA GT4 and GR SUPRA show the differences and connections between road cars and racing cars in many aspects. As a masterpiece of Toyota GAZOO Racing in the field of racing, GR SUPRA GT4 not only demonstrates Toyota's outstanding technology in automobile manufacturing, but also reflects the brand's deep understanding and inheritance of racing culture. By sharing most of the basic parts with mass-produced models, GR SUPRA GT4 has achieved a reasonable price, allowing more racing enthusiasts to have the opportunity to participate in this exciting sport. At the same time, the innovation and breakthrough of this car in racing technology will also provide valuable data and experience for the research and development of the next generation of mass-produced models, and promote the continuous development of the automotive industry. Just as Toyota advocates "starting from motor sports and making better cars", GR SUPRA GT4 and GR SUPRA are undoubtedly the perfect interpretation of this concept. They will leave a strong mark in the history of automobiles and inspire more car enthusiasts to pursue the dream of speed and passion.