In this April 25, 2012 file photo, Steve Brock, Orion Assembly plant manager, answers a reporters question in Orion Township, Mich. Nearly four years after GM filed for bankruptcy prote

 

              In this April 25, 2012 file photo, Steve Brock, Orion Assembly plant manager, answers a reporters question in Orion Township, Mich. Nearly four years after GM filed for bankruptcy prote
In this April 25, 2012 file photo, Steve Brock, Orion Assembly plant manager, answers a reporters question in Orion Township, Mich. Nearly four years after GM filed for bankruptcy protection, the automaker is building the Verano and the Sonic, the best-selling subcompact car in the nation.(AP Photo/Duane Burleson)