Green diesel

Source: Forbes

Hybrid is not the only green option for cars. The latest diesel engines aren't like the old soot-spewing kind and "a new generation of diesel cars is on its way to all 50 states, led by carmakers based in Europe, where half of all consumers prefer diesels." Volkswagen's Jetta TDI gets over 50 mpg on the highway, and 40 mpg around town and it can got over 600 miles between fill-ups. BMW and Audi are alos bringing "clean diesels" to the US. "By 2017 14 percent of cars sold in the U.S. will have diesel engines."