Michelin Green X Challenge
In January 2008, the American Le Mans Series announced it would hold its first "Green Challenge" competition during Petit Le Mans at Road Atlanta in October, ahead of the Challenge being implemented at all ALMS races during the 2009 season. In conjunction with the Department of Energy, the Environmental Protection Agency, Environment Canada and SAE International, the Series has unveiled the Green Challenge's rules and regulations. Two class leading vehicles ran low CO2 or green engines during the 2008 season - the GT1 Chevrolet Corvette C6.R with an E85 cellulosic ethanol powered 7.0 litre V8 and the LMP1 Audi R10 TDI with a 5.5 litre turbodiesel V12. Currently, the Michelin Green X Challenge awards invitations to the 24 Hours of Le Mans for the 1st and 2nd place winners in the Prototype and GT categories for the entire season.
The Challenge measures "Green" (based on fuel-type and other factors influencing emissions), "Speed" (overall speed), and "Efficiency" (based on fuel-economy). A formula is used to produce a score based on the 3 categories. The car with the lowest score at the end of the race wins the Challenge for that race.
Read more about this topic: American Le Mans Series
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