The boys at 9ff have an enormous need for speed and brought the first half of 2008 to the 987 horsepower engine to improve for Porsche GT 9. With this engine, the car is even faster than a Bugatti Veyron and the maximum speed was 409 km / h. Going over 400 km / h is an incredible achievement, but the boys wanted 9ff the fastest car in the world to create. The record, 411.71 km / h, holding my one SSC Ultimate Aero was almost imposible to brake, so the boys 9ff spent the rest of the year to improve the GT. The new version, called R and the GT9's engine to develop 1120 hp and a torque of 1050 Nm. The guys from 9ff kept secret technical details, but this car was the fastest street car in the world.