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The 2001 Suzuki GSX-R/4 Concept was a remarkable showcase of Suzuki's fusion of motorcycle and automobile technologies. Unveiled in 2001, this concept car reached a top speed of 181 mph (291 km/h) and weighed 640 kg (1,410 lb). It featured a mid-mounted, 1.3 L (79 in³) DOHC engine sourced from Suzuki's flagship motorcycle, the GSX-1300R Hayabusa.
Designed as a demonstration of cutting-edge technology, the GSX-R/4 was not intended for production. The engine, a powerful 1.3-liter unit with 173 horsepower, was positioned longitudinally behind the driver's back, following a formula-like layout. This configuration aimed to minimize the moment of inertia around the car's vertical axis, providing agile handling.
The car's exterior design highlighted its unique features. The body was constructed with a monocoque made of aluminum profiles, partially covered with plastic decorative panels. Notably, the body was 100% recyclable, underlining a commitment to sustainability. The car's appearance resembled a toy, with the engine and suspension elements prominently visible, a transparent visor above the dashboard, and wheel rims that resembled buttons.
The GSX-R/4 was equipped with upscale features for its time, including GPS navigation. The absence of traditional mirrors was compensated by a miniature video camera installed between the bends of the safety arch, providing rearward visibility. Brake lights were ingeniously placed on the back of the headrests.
The car's performance was impressive, with a top speed only 10 km/h less than its racing counterpart, the GSX1300R Hayabusa. The six-speed sequential transmission allowed precise gear shifts, enhancing the overall driving experience. The GSX-R/4 also featured an Advanced Safety Vehicle (ASV) computer training program displayed on a monitor, offering guidance on driving techniques, ideal trajectories, and braking points.
In addition to the GSX-R/4, Suzuki introduced the Formula Hayabusa, an open-wheel race car concept powered by the same 173 bhp (129 kW) motorcycle engine. This race car was designed for a new Japanese one-make competition series, emphasizing Suzuki's prowess in advanced automotive and motorcycle engineering.
The GSX-R/4 concept and Formula Hayabusa collectively showcased Suzuki's innovative approach, combining the best of both motorcycle and automobile technologies, and were presented at the Los Angeles Auto Show in 2002.
Sources: Sergey Butov “Racing desk” (Motor Magazine 10-2001); SUZUKI Press Release
Images: SUZUKI MOTOR CORPORATION.
