Chevrolet Volt gets 230 mpg in the city, and only in the city.

General Motors made some big headlines this morning with word that its Chevrolet Volt electric car will get 230 miles per gallon in the city. That’s an impressive feat to be sure. It will certainly leap frog any car on the market except for all-electric cars like the Nissan Leaf or the Tesla Roadster when the Volt goes on sale late next year. But the Volt has an advantage for some drivers because its gasoline engine keeps recharging the battery, so drivers can drive far longer than the Leaf’s 100 miles. In auto industry parlance, the Volt is an extended-range electric vehicle.

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