A diesel-powered Audi will run in the next 24-hours of Le Mans race, so why not a biodiesel Lola? Why, indeed, says the head of UK-based D1 Oils, a maker of biodiesel products, which entered a Lola B2K — powered by a Volkswagen Touareg's TDI V10 — modified to run on a mix of diesel and vegetable oil. It's 15mph slower than its gas-power competitors, topping out at 200hph, but the team hopes its fuel efficiency will give it an edge. The car has yet to pass its qualifying tests, but if it makes it into the race, Paul Newman said he'd enter a car that runs on his salad dressing.
LeMans: The Ultimate Test for a Green Car [The German Car Blog]
Audi Launches R10 LeMans Racer: Yes, It s a Diesel [internal]