2015 Geneva Motor Show: Porsche GT3 RS image gallery
Though based largely on the 911 GT3, the GT3 RS makes use of an uprated 4.0-litre straight six engine that develops 500PS of power and 460Nm of torque  25PS and 20Nm more than the 3.8-litre unit powering the GT3. From standstill, 100kmph comes up in 3.3 seconds and 200kmph, in 10.9s. The GT3 RS' engine is the largest and most powerful engine on any production Porsche currently.
Though Porsche hasn't given out an exact figure, the company claims that the 911 GT3 RS has lapped Nürburgring's Nordschleife in under seven minutes and twenty seconds, which is at least five seconds quicker than the GT3 (7:25.0) and significantly quicker than the Carrera GT (7:28.0) and the 911 GT2 (7:32.0).
Scroll down to see how all of this power and speed is packaged by Porsche.
For more stories from the Geneva Motor Show 2015, click here.
2015 Geneva Motor Show: Porsche 911 GT3 RS
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