Porsche continue their racing nomenclature game with the latest GT3 RSR, a more powerful endurance racer not to be confused with the current GT3 RS racer.
The most distinguishing visual feature of the new GT3 RSR is the front end which received major improvements to the aerodynamic package.
Aside from the easily recognisable additional spoilers on the front apron, an optimised air ducting with newly-designed side air outlets generates more downforce and reduces drag.
Bigger flat six
The 3.8-litre boxer engine of the GT3 RSR, 200cc larger than the GT3 RS racer, produces 342 kW at 8 000r/min and delivers maximum torque of 430 Nm at 7 250r/min whilst being limited to a 9 400r/min rev ceiling.
Featuring an all-new six-speed sequential gearbox, which owes much of its design intricacies to the Porsche RS Spyder sports prototype, the new 'box is lighter and features flatter angle of driveshaft alignment, allowing for more suspension adjustment latitude in turn.
A limited slip differential ensures optimal traction, especially out of off-camber, second gear corners.
Huge single-piece six- and four-piston aluminium calliper brakes measure 380- and 355mm front and rear respectively, providing fade-free stopping power for endurance racing in the best Porsche tradition.
Racing range with heritage
Aside from the GT3 Cup and the GT3 Cup S, the GT3 RSR is the third race car based on the Porsche 911 offered by Porsche Motorsport.
Thirty-five units of the fastest and most powerful long distance racer made in Weissach, apart from the exclusive RS Spyder sports prototype, are now being produced and delivered to customer teams around the globe.
These are set to compete in the GT2 class of global endurance racing, where they will face severe competition from the Corvette C6R, Ferrari F430 GT2 and the upcoming Aston Martin Vantage GT2.