When it comes about cool supercars, Koenigsegg->ke43 is definitely one of our favorite brands. So you can imagine why we get pretty excited when we see one in action around the Nurburgring race track.

This video shot by Youtube user cvdzijden shows a Koenigsegg CCX. In fact he say that this is a Koenigsegg CCX 7031 Streetfighter prototype, but offered no other details on it. Too bad! Next to it , Koenigsegg was also present with a red Agera R. In the video you hear the great engine sound and also the start-up sound. You see it also in action on the Green Hell!

And, for those of you who have forgotten, the CCX is powered by 4.7 liter V8 engine that delivers an amazing 806 HP. The car is capable to hit a top speed of 245 mph!

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