Unveiled today at the 2016 Geneva International Motor Show, the new Porsche 911 R is a pure-bred sports car built to conform to a time-honoured formula; a powerful 500 hp four-litre naturally-aspirated flat-six engine driving the rear wheels, a six-speed manual transmission, and a lightweight body.
The discs measure a generous 410 mm diameter on the front axle and 390 mm on the rear.
Ultra High Performance Tyres of 245 mm width at the front and 305 mm width at the rear provide assured contact to the road.
However, with a view to road use, the body does not have the fixed rear wing familiar with that model.
Instead, a retractable rear spoiler shared with the Carrera models and a bespoke aerodynamic diffuser beneath the rear underbody provides the necessary downforce.
The front and rear apron come from the 911 GT3, with a re-designed spoiler lip installed on the front