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There's no question that motorsports have cleaned up tremendously in the past few years. Just look at all the Audi R10, Honda F1, IRL ethanol, and hydrogen racing news that's been on AutoblogGreen recently. It still might seem odd to some readers that using fuel just to drive in circles is the most obvious example of waste there is. But I used to not get jogging on a track either. I thought, "what's the point of the oval, when you could run on a trail or roadway and see new things around every c