230 MPG?

GM’s new Chevy Volt was recently announced to get 230 miles per gallon.

Skeptical?  Me too, but this is based on current EPA ratings.  Think 230 m.p.g. is as good as it gets?  Think again.

And as eye-popping as the number was, a rival automaker, Nissan, said last week that its all-electric vehicle, the Leaf, which is scheduled to come out in late 2010, would get 367 m.p.g., using the same E.P.A. standards.

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