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In this Aug. 1, 2013 photo provided by General Motors, cars are assembled at the General Motors Spring Hill Manufacturing Plant in Spring Hill, Tenn. General Motors announced Tuesday, Aug. 6, 2013, that it is spending another $167 million at the factory so it can build two new midsize vehicles. (AP Photo/General Motors)

Associated Press
In this Aug. 1, 2013 photo provided by General Motors, cars are assembled at the General Motors Spring Hill Manufacturing Plant in Spring Hill, Tenn. General Motors announced Tuesday, Aug. 6, 2013, that it is spending another $167 million at the factory so it can build two new midsize vehicles. (AP Photo/General Motors)
In this Aug. 1, 2013 photo provided by General Motors, cars are assembled at the General Motors Spring Hill Manufacturing Plant in Spring Hill, Tenn. General Motors announced Tuesday, Aug. 6, 2013, that it is spending another $167 million at the factory so it can build two new midsize vehicles. (AP Photo/General Motors)
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