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I am not really interested in spending a fortune on a Prius or one of the industry's new coal-powered cars like the Chevy Volt or Nissan Leaf. So it warmed my environmentalist heart to see the New York Times talking up the movement toward updating the 4 cylinder engine. Our 1997 Saturn station wagon, may be lacking in glamour (and missing some paint), but it still gets 34-35 mpg. New smaller, lighter, non-sci-fi cars, likewise might not be a glamorous solution to our ecological problems, but in the short-term it's certainly likely to be a bigger help then Chevy's $40,000 bauble._