Forget about cars like the Bugatti Veyron or Ultima GT-R and SSC Ultimate Aero TT. The Porsche tuners at 9ff have officially come to play with the GT9-R - a car that is believed to become the fastest production based car ever.
The 9ff GT9-R is powered by a 4.0 Liter six cylinder boxer engine that delivers a total of 1120 HP. This amount of power will be more than enough to propel the modified 911 from 0 to 60 MPH in just 2.9 seconds and hit a top speed of 257.2 MPH. If this kind of power is simply too much for you to handle, 9ff will also built another version of the GT9 that will "only" produce 987 HP as well as a lesser 750 HP version. 9ff will produce 20 units of this high speed machine for the world’s luckiest speed freaks to enjoy, prices have not yet been announced.