Taking the iconic GTS-R nameplate to its most sophisticated and powerful conclusion, is the GTS-R W1.

Filling every inch of this car’s engine bay is a hand-built, 6.2 litre, supercharged LS9 Generation IV alloy V8. The pinnacle of 30 years of HSV engineering, this fire-breathing power plant is fitted with titanium connecting rods and inlet valves, a dry sump oiling system, and a supercharger with twin four-lobe rotors that pumps 2.3 litres of air per revolution. The result is a mind-blowing 474kW of power and 815Nm of torque.

On hand to make the most of all that power is a close-ratio Tremec TR-6060 (MH3 spec.) 6-speed manual transmission that’s been specially designed to optimise track performance and improve drivability.

The GTS-R W1 is build 77 out of the 275 of these road-legal race-cars that were ever manufactured.