Porsche 9ff GTT 900 based on Carrera GT

9ff is a specialist Porsche tuner, so if anyone knows how to work a Porsche engine it is these guys. The Porsche Carrera GT is one of the most accomplished, if severely undermarketed road cars built in the past few years. That 5.7-litre V10 produces 612hp/ 456kW and 590Nm of torque, both of which can whirl the car from standstill to 100km/h in 3.9 seconds topping off at a limited 334km/h (207mph)