Porsche stole the show with the 911 GT3 RS in Geneva on Tuesday. This latest treat from the German carmaker comes with a motorsport chassis and 383kW (520hp), four-litre, high-speed naturally aspirated engine. The new high-performance sports car is based on the 911 GT3, which has been refined still further to combine the performance-enhanced engine with a running-gear setup that features recalibrated rear axle steering designed for maximum dynamics and precision. The 911 GT3 RS can accelerate from zero to 100km/h in just 3.2 seconds and can reach top speed of 312km/h.