Our hypermiling friends at Ecomodder.com took home three trophies at the Green Grand Prix, including top honors for an astonishing 99.7 mpg. "It was a fun event," Cosgrove told us. That's him with his ...

In his endless quest to squeeze every possible mile from a gallon of gasoline, our friend Darin Cosgrove has given his econobox a homemade boat tail and boosted his fuel economy to 64 mpg. Cosgrove, ...

The practice of home-building electric vehicles is not uncommon amongst hardcore EV enthusiasts. Our own Nikki Gordon-Bloomfield has converted her own EVs before, and several members on the website ...

Hypermilers (ecomodder is the preferred term) are a different type of car enthusiast. They modify their cars and driving styles to achieve optimal fuel economy, which often leads to sensational ...