Green Machines Tour is an educational campaign showing off new technologies behind fuel-efficient vehicles. The Tour launched in the fall of 2004 and brings together many environmental organizations, auto industry representatives, and elected officials to promote ‘green vehicles’ and policies to further advance these technologies into the mainstream US automobile industry. They make a good effort in trying to increase popularity and competitiveness of U.S. ‘green’ automobiles. Personally, I feel that foreign cars are holding the top spots. Check out their list of U.S. vehicles that have advanced in quality by improving their efficiency, performance, and reducing emissions.