Porsche has unveiled the latest version of its ultra-popular 911 GT3 Cup race car, which is based on the road-going GT3 RS model for the first time.
The Cup will share the same 444bhp 3.8-litre engine as the road legal car, albeit in a body that has shed 170kg in weight.
In the race car the flat-six is mated to a sequential six-speed gearbox, and gets a fully adjustable chassis to go with the lower front-lip spoiler, wider tyres and bigger rear wing.
Inevitably, the interior is even more pared back than the hardcore RS, but it does add steering wheel controls for wipers, lights and the pit-lane speed limiter. There's even an additional air vent for the driver's comfort.
Otherwise the racing version owes much of its appearance to the road car. The 44mm wider rear body is already a feature of the RS, and both models share a significant proportion of body panels, as well as daytime running lights and rear LEDs.
The GT3 Cup has been developed by Porsche's team in Weissach and will compete worldwide in the Carrera Cup Championships, and the Mobil1 Supercup that supports Formula One.