American Le Mans Race Cars to Compete to be the Greenest

The Corvette Racing team is fueling with cellulosic E85 throughout this season of the American Le Mans Series. Enlarge this photo. Credit: American Le Mans Series The tenth-anniversary running of the Petit Le Mans endurance race in Braselton, Georgia, will feature an added twist, as the racers will also compete to achieve the smallest environmental impact. The American Le Mans Series announced on June 24 that its signature event will feature the first ever "Green Challenge," a race within a race that will score each car based on its total energy use, the greenhouse gases emitted, and the petroleum fuels displaced during its running of the 1,000-mile, 10-hour race. The American Le Mans races employ three fuels: sulfur-free diesel fuel, E10 (a blend of 10% ethanol and 90% gasoline), and E85 (a blend of 85% ethanol and 15%... [read full story]