fuel rating

Have your calculator and utility bill handy if you're keen on buying a Chevy Volt (or Nissan LEAF) and want to compare fuel costs with gasoline cars. The EPA is still grappling with how to provide consumers with ratings comparable to the familiar MPG labels.

GM has finally put a sticker price on its much anticipated plug-in electric hybrid. Granted, a hefty federal tax credit will defray the cost, but the Volt carries a premium price. GM's challenge now is convincing consumers the Volt is worth it.