The challenge was simple: take all that lovely biodiesel we planted last series and use it to run a BMW 3-Series in the Britcar 24hrs at Silverstone.
The reality, naturally, proved a bit more difficult.
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You've found a page archived from the old TopGear.com website. As you probably noticed, TopGear.com had a major revamp in October 2008 but we left these pages up in case you missed them. Check out the new site links at the top or go straight to the homepage.
