Mean, green machine - future of motor racing

Cars powered by chocolate, steered by carrots with drivers sitting on soybean oil foam seats - it's motor racing's cheap, cheerful and environmentally-friendly series of the future.

Roadsters embrace green racing

Fast and green. That's what it takes to get to the winner's circle in a new type of auto racing.

Scientists unveil chocolate-fueled race car

(AP) -- Scientists unveiled on Tuesday what they hope will be one of the world's fastest biofuel vehicles, powered by waste from chocolate factories and made partly from plant fibers.

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