The all-new 2014 GMC Sierra has undergone specific design changes to boost both fuel efficiency and interior quietness, after spending a major portion of its development time in a wind tunnel.
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Final testing of the all-new Colorado Chevrolet diesel-powered midsize pickup is wrapping up as production nears for markets including the Middle East, South America, Africa, and Asia.
General Motors is leaner and meaner, but is it greener?
The GMC Terrain has been one of GMC's best-selling vehicles since its inception back in 2010 and the Detroit-based auto maker is looking to continue that trend.