Porsche 991 GT3RS

As with the previous generation, the new GT3 RS will be both lighter and more powerful than the GT3 on which it is based, in this case the 475bhp, 1505kg car derived from the current 991 series of 911.
Currently the car is testing with a standard GT3 engine, but the RS is said to have an output of "at least 500bhp", eclipsing even the 493bhp of the 4.0-litre, limited-edition Porsche GT3 RS 4.0, which will make it the most powerful naturally aspirated six-cylinder road car engine produced by Porsche to date.
Additionally, Porsche has reworked the GT3's suspension and fitted the wheels and tyres from the 918 Spyder, improving grip and traction.
Purists might have been hoping that the RS would provide an excuse to return to a manual gearbox in the GT3, but it seems it will feature a seven-speed dual-clutch automatic like the existing car, although bespoke ratios are a possibility.
Given that the GT3 can hit 62mph from rest in a claimed 3.5sec, the lighter, more powerful RS should reduce this to the region of 3.2 or 3.3sec.