Most Fuel-Efficient Automaker in America

Mazda Line Up 2014

Mazda is recognized as the most fuel-efficient automaker in the U.S, by the U.S. Environmental Protection Agency., based on total 2013 production. (And Mazda has accomplished this without expensive hybrid technology.)

Link - http://www.epa.gov/fueleconomy/fetrends/1975-2013/420r13011.pdf