General Motors

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A line worker checks vehicles at the General Motors Hamtramck assembly plant in Hamtramck, Mich., Tuesday, Nov. 30, 2010. U.S. factory output grew for the 16th straight month in November, though at a slightly slower pace than the previous month.(AP Photo/Paul Sancya) **FILE**

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** FILE ** President Obama inspects a Chevrolet Volt during his tour of the General Motors Auto Plant in Hamtramck, Mich., July, 2012. (Associated Press)

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President Obama inspects the new Chevrolet Volt during his tour of the General Motors Auto Plant in Hamtramck, Mich., in July 2010. (Associated Press) **FILE**

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In this photo provided by the New York Stock Exchange, General Motors CEO Daniel Akerson, center, rings the NYSE opening bell with other GM executives Thursday, Nov. 18, 2010 in New York. General Motors stock began trading on Wall Street again Thursday, signaling the rebirth of an American corporate icon that collapsed into bankruptcy and was rescued with a $50 billion infusion from taxpayers. (AP Photo/New York Stock Exchange, Ben Hider) NO SALES

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A banner displaying the name of General Motors covers the New York Stock Exchange in New York, Thursday, Nov. 18, 2010. (AP Photo/Seth Wenig)

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General Motors' cars are lined up in front of the New York Stock Exchange in New York, Thursday, Nov. 18, 2010. (AP Photo/Seth Wenig)

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General Motors CEO Dan Akerson, bottom right, stands among traders at the post where GM stock is traded at the New York Stock Exchange in New York, Thursday, Nov. 18, 2010. (AP Photo/Seth Wenig)

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A banner displaying the name of General Motors covers the New York Stock Exchange in New York, Thursday, Nov. 18, 2010. (AP Photo/Seth Wenig)

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** FILE ** Assemblyman Kenny Bradburn works on the right front fender of a 2011 GMC Sierra at General Motors' Flint assembly plant in Flint, Mich., on June 23, 2010. (AP Photo/Carlos Osorio)

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**FILE** This photo from April 21, 2009, shows American flags flying outside General Motors' world headquarters in Detroit. (Associated Press)

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President Barack Obama and Transportaion Secretary Ray LaHood walk on the South Lawn of the White House in Washington, Friday, July 30, 2010, prior to boarding his helicopter for a short flight to Andrews Air Force Base, then on to Michigan where he will tour General Motors and Chrysler factories recovering from the financial crisis. (AP Photo/J. Scott Applewhite)

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** FILE ** General Motors vehicles are displayed at the GM headquarters in Detroit on Thursday, July 9, 2009. (AP Photo/Carlos Osorio)

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Associated press General Motors posted a $9.6 billion fourth-quarter loss and said Thursday that it burned through $6.2 billion in the last three months of 2008 as it fought the worst U.S. auto sales climate since 1982 and sought government loans to keep the company running.