C-x75

I'll let the vid do the talking

[video=youtube;fqqJs0mqH9M]http://www.youtube.com/watch?client=mv-google&hl=en&gl=GB&v=fqqJs0mqH9M&nomobile=1[/video]
 
313 horses per litre...... I'm say that again, 313 mutherfu#kinghorsepower per litre. And over 10,00rpm..... Truly epic
 
Its a shame they sh*t-canned the idea to sell them as a production car last year. They had huge plans to make a this a proper limited run car (a bit like the old XJ220). But it was proving to be too expensive compared to the new Porsche 918/Mclaren P1/LaFerrari.

The original concept had some even crazier turbine tech for the engine as well IIRC.