Here's one of the few videos that actually shows a tuner model in action.
This is the RUF Rt 12 R based on the Porsche 911.
The car features a highly-modified 3.8 liter Boxer engine which now gets a twin-turbo unit that dials up output 730 PS (537 kW / 720 bhp) and 940 Nm of torque (693 lb-ft).
Gearbox is a six-speed manual and the RUF Rt 12 R comes with an all-wheel drive system that features an optional rear-drive only setting. The car also comes with an adjustable suspension.
Top speed is 370 km/h (230 mph).
