The Green Racing Initiative uses motor sport competition to help rapidly develop cleaner, more fuel efficient vehicle propulsion systems that will eventually be used in consumer vehicles. Partners brought together by SAE International to form the Green Racing Working Group. Technologies initially developed for green race cars will foster faster general introduction of automotive technologies that reduce GHGs, reduce exhaust pollutants, and increase fuel economy. The high level of interest in motor sports could bring this technology to the attention of the public and hasten its acceptance in the new market.In 2009, the American Le Mans Series (ALMS) adopted the Green Racing protocols and incorporated them into a season-long Green Racing Cup Championship Award. The protocols are based on the use of the following five elements:Renewable fuels;Different engines, fuels, and propulsion systems in one race;Regenerative energy powertrain technologies that recover and reuse braking energy;Energy allocations instead of detailed sporting regulations; andExhaust pollution control strategies and systems.