The Chevy Volt, General Motors says, should earn an EPA rating of 230 mpg.  The Nissan Leaf will beat that, its builders say, with a 367 mpg rating. The EPA isn’t so sure. USA Today reports, “The concept of judging fuel efficiency on electric cars by the ‘miles per gallon’ they consume is dying a [...]

GM has reached an agreement with top US regulators that allows them to certify the Volt as the worlds first 100 mpg car. While the exact method of testing is not known we do know that the EPA agreed to a testing method that will at least achieve a three digit mileage number. “It’s a [...]

There are rumors going around detroit that GM and the EPA are having words about how the Volt is rated.  The Volt is an entirely new vehicle that the EPA hasn’t seen before.  Does the EPA consider the Volt a hybrid vehicle?  Or and electric vehicle? What the EPA decides can have an important impact [...]