Silverado pickup trucks sit in a long row at a Chevrolet dealership in June. Fourth quarter sales of some GM vehicles, were hurt by the strike at the nation's three unionized automakers by the United Auto Workers union.
Mandatory Credit:	David Zalubowski/AP

Silverado pickup trucks sit in a long row at a Chevrolet dealership in June. Fourth quarter sales of some GM vehicles, were hurt by the strike at the nation's three unionized automakers by the United Auto Workers union.
Mandatory Credit: David Zalubowski/AP

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GM sales inch higher despite big strike impact

The strike at General Motors plants in September and October took a bite out of its fourth-quarter sales, but strong demand for the vehicles made at its other plants allowed the company to report a narrow gain in US vehicle sales overall.