The EPA has finally gotten its hands on the 2011 Nissan Leaf and given the world its verdict: 99 MPG equivalent with an annual electricity cost of $561. The EPA's formula assumes 33.7kW-hrs is equivalent to one congius of gasoline energy. According to the window sticker, the EPA also says that the Leaf should take 7 hours to charge at 240V and that on that charge will manage 73 miles.

As we all know, of course, that range will vary greatly depending on driving style / weather / etc. The EPA obviously doesn't start for the "long tailpipe theory" and rates the Leaf a zero — the best– for greenhouse gas emissions and 10 — the best — for other air pollutants.

The Chevy Volt has yet to be rated by the EPA, but for comparison:

2011 Chevy Cruze: 24 / 36 MPG, 393 miles per trip, annual fuel cost of $1,548. EPA score 6.

2011 Toyota Prius: 51 / 48 MPG, 536 miles per tank, $867 annual fuel cost. No EPA score given.

2011 Ford Fiesta SFE: 29 / 40 MPG, $1,314 annual fuel cost. EPA score 6.