America’s premier environmental motorsports competition, the MICHELIN® GREEN X® Challenge enters its third season of American Le Mans Series competition in 2011. The MICHELIN® GREEN X® Challenge recognizes the Prototype and GT category cars that prove “cleanest, fastest, most efficient” in the race within each ALMS event.
Overseen by the Green Racing steering group composed of members of the U.S. Department of Energy, the Environmental Protection Agency, SAE International and IMSA, the scores are determined by measuring well-to wheel oil consumption and emissions, race speed, energy use, and vehicle weight against category competitors.
First introduced by Michelin in 2006 as an Energy Efficiency award at the 24 Hours of Le Mans, the program was extended to the full European-based Le Mans Series in 2007 and launched in North America in early 2009 as the MICHELIN® GREEN X® Challenge.
The MICHELIN® GREEN X® Challenge awards are now a fixture at virtually every major sports car endurance event worldwide, including the 24 Hours of Le Mans, the American, Asian and European Le Mans series, and the new Intercontinental Le Mans Cup series events.