The type 991 Porsche 911 has only just gone on sale, but it would appear that tuners have already got their hands on them. Best-known of all Porsche tuners is Ruf and they had two on their Geneva stand. Our favourite, was the Rt 35 Anniversary. Parked in front of one of the first Ruf converted cars, the Rt 35 Anniversary celebrates Ruf's 35 years in business and beats Porsche to offer twin-turbos for the latest Carrera S. Rated at 621bhp, with an equally astounding 608 pound feet of torque, all this power is fed to the road via a standard seven-speed dual-clutch gearbox. Ruf isn't revealing a 0-60 time, but the top speed is over 205 mph.