Green racing: Bio-diesel at Le Mans in 2008

Our readers might not consider motor sports as a very green activity, but some people are trying to at least improve the image of the sport. After the announcement from Audi a few months ago that it would be entering a diesel-powered race car at Le Mans, a French team which has entered cars in the junior prototype class at the Le Mans 24 Hour race since 1992 has announced plans to compete with a bio-diesel powered car in the event in 2008. The team will actually receive support from a French association which supports the development of agricultural fuels. For these endurance races, diesel powered cars actually make a lot of sense, since fuel economy is crucial when having to go around a track for 24 hours straight. 
[Source: Energy Efficient Motorsports]