[GuidoThePenguin]

The Audi R10 diesel makes absolutely tons of power. And yet is without a doubt the quietest race car you'll never hear. Having seen it in action in Sebring and Road Atlanta, the car mimicks a stock Honda civic going down the highway.

And without a puff of dark smoke you'd associate with a diesel car.


The rules are already being equaled out as far as the diesel cars go. They already have to use a smaller fuel tank to minimize whatever fuel economy they get. Plus the fuel flow is restricted from the pump to the car's tank so it takes as long to gas up as a petrol car.