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General Motors said Tuesday its Chevrolet Volt electric car could get 230 mpg in city driving, making it the first American vehicle to achieve triple-digit fuel economy if that figure is confirmed by federal regulators.
But when the four-door family sedan hits showrooms late next year, its efficiency will come with a steep sticker price: $40,000.
Still, the Volt's fuel efficiency would be four times more than the popular Toyota Prius hybrid, the most efficient car now sold in the U.S.