| Suzuki GSX-R/4 | |
| Manufacturer: | Suzuki |
| Production: | 2001 |
| Class: | Concept car |
| Body Style: | Roadster |
| Layout: | Mid-engine design |
| Engine: | , 4-stroke inline-four, liquid-cooled, DOHC, 16-valve, |
| Transmission: | 6-speed sequential manual |
| Sp: | us |
The Suzuki GSX-R/4 is a concept car made by Suzuki in 2001. It reaches a top speed of at 9800 rpm and weighs . It has a mid-mounted, DOHC engine taken from the company's flagship motorcycle, the GSX-1300R Hayabusa. Designed as a showcase for technology, the GSX-R/4 was never meant for production. It had upscale features for its time, such as GPS navigation. Alongside the GSX-R/4, Suzuki presented the Formula Hayabusa, an open wheel race car concept, also using the motorcycle engine.