Porsche unveils the 991 GT3 at the ongoing Geneva Motor Show

Back in 1999, the 911 GT3 became the fastest ever production car to lap the legendary Nurburgring Nordschleife circuit, and hence set the benchmark for road legal sports cars. Over the last four generations, a total of 14,145 GT3 cars have since been built. And now, there is a new one based on the latest 991 series.

The fifth generation 911 GT3 debuts at the ongoing Geneva Motor Show, and aims to set the benchmark among thoroughbred Porsche sports cars with naturally aspirated engines. The engine, transmission, body and chassis are entirely new, but the proven characteristics of the track inspired sports car are preserved.

The powertrain of the new 911 GT3 comprises of a 3.8-litre flat engine developing 475bhp, mated to a Porsche PDK double-clutch gearbox, sending the drive to the rear wheels. Though the six-cylinder engine is similar to the 911 Carrera S, they only share a few common parts and weigh around 25kg less than the previous unit.

The new 911 GT3 will also come with a sports exhaust system, which is revised from the previous model. Based on the 991, the GT3 is 44mm wider than a Carrera S across the rear axle and houses the distinctive large, fixed rear wing.

The 911 GT3 will hit 100km/h in just 3.5 seconds while the top speed of 313km/h is attainable via the seventh gear. The 911 GT3 lapped the 'Green Hell' in less than 7 minutes and 30 seconds - just six seconds off the record set by the more powerful GT2 RS.