US Environmental Protection Agency(EPA) has come out with a SmartWay program for gauging the efficiency of the plethora of green cars. This program was created in 2004 to rank the fuel efficiency of commercial trucks and was expanded to include passenger vehicles.
Now customers won’t have to wade through the growing number of ratings and jargons such as “ Tier II, Bin 5, grams of carbon dioxide per mile ” associated with a cars green efficiency. Under this program a “ green leaf “or an “ elite green leaf “ is awarded to the cleanest of all the cars. Some models to earn this elite certification include, natural gas-powered Honda Civic GX, the hybrid Toyota Prius , hybrid versions of the Civic, Nissan Altima and Toyota Camry
