WASHINGTON - The American Council for an Energy-Efficient Economy has released its 14th annual environmental ratings for the model year. For the 8th year, the Honda Civic GX natural gas vehicle wins top honors, despite changes to rating methods that boosted other technologies.
Tags: Chevrolet, Mazda, Honda Civic, smart fortwo, Nissan LEAF, Ford Fiesta SFE, Hyundai Elantra, Natural Gas Vehicles