Article content from AutoSport news release (March 4, 2013)

BRR – We’ve seen the spy shots.? We’ve read the articles and leaks w great interest.? Now Porsche releases the official details on the next generation Porsche 991 GT3.

The Porsche 911 celebrates its 50th anniversary in 2013, what better way to celebrate than with a new Porsche 991 GT3! Now in its fifth generation, the Porsche 991 GT3 promises to be one of the best supercars of 2013. It make its debut tomorrow at the Geneva Motor Show 2013 (Tuesday, March 5, 2013).

The engine, transmission, body and chassis are entirely new. The Porsche 991 GT3 gets a 3.8-litre flat engine developing 475hp at 8,250 rpm. It is an adaption of the engine used in the current generation Porsche Carrera S but with only a few common parts. The engine weighs around 25 kg less than the previous unit with a power output of 125 hp/litre of displacement.

The crankshaft and valve train, were specially adapted or developed for the GT3. The GT3 uses titanium connecting rods attached to forged pistons. Purists will have to adapt as, for the moment, the Porsche 991 GT3 only gets a Porsche Doppelkupplung (PDK) double-clutch gearbox. It is adapted and strengthened specially for the GT3.

All power is routed through the rear wheels. This also gets an innovative rear wheel steer feature for the first time. The system takes into account variables such as the speed and improves the cars agility and stability.

The new 911 GT3 is designed for further gains in precision and lateral dynamics throughout. Porsche is using active rear-wheel steering for the first time. Depending on the speed, the system steers in the opposite or the same direction as the front wheels, thereby improving agility and stability. Among the other new driving dynamics features are the electronically-controlled, fully variable rear differential lock, and the dynamic engine mounts.

The Porsche 991 GT3 features 20-inch forged alloy wheels with center locks (BRR – hmmm…wonder which version this car has????). The new GT3 is 44 millimeters wider than the Carrera S at the rear axle. Porsche have fitted a new rear wing to aid with downforce.

Performance is as follows, 0 to 100km/h is passed after just 3.5 seconds, and 200km/h in less than 12 seconds. The top speed of 314km/h is reached in seventh gear of the PDK transmission. The lap time on the N