STERLING HEIGHTS, MI - MARCH 14: Robots are shown on the assembly line of the new 2015 Chrysler 200 at the Sterling Heights Assembly Plant March 14, 2014 in Sterling Heights, Michigan. The plant, originally slated for closure in 2010, was transformed by an investment of more than $1 billion and is now one of the Chrysler Group's largest and most technologically advanced, with more than 5 million square feet of manufacturing space. (Photo by Bill Pugliano/Getty Images)