FILE - In this Nov. 17, 2011 file photo, the 2012 Honda Civic Natural Gas car, named Green Car of the Year for 2012, is displayed after its unveiling at press preview day for the Los Angeles Auto Show. Fill 'er up _ with natural gas. High pump prices are encouraging GM and Chrysler to roll out pickups that run on natural gas, which is plentiful and cheap in the U.S.. Here's a look at what models are coming, what's already out there and where to go to fill up. (AP Photo/Reed Saxon, File)
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