The fastest and most powerful road car Porsche has ever produced. In comparison to the existing 911 GT2, the RS has 90 bhp more and weighs 70 kilograms (154 lb) less, consumes 5% less fuel at 11.9 ltr/100 km (equal to 23.7 mpg) and emits 5% less CO2 at 284 g/km. It's the blistering performance which will pull the punters though. The 620 bhp pushing a curb weight of 1370 kg makes for awesome acceleration: 0 to 100 kmh in 3.5 seconds, 0 to 200 kmh in just 9.8 seconds, and 0 to 300 kmh in 28.9 seconds. Top speed is 330 kmh