FILE - In this Nov. 3, 2011 file photo, a General Motors employee works on a van assembly line at GM's plant in Wentzville, Mo. as GM announced plans to build its new midsize Colorado p

 

              FILE - In this Nov. 3, 2011 file photo, a General Motors employee works on a van assembly line at GM
FILE - In this Nov. 3, 2011 file photo, a General Motors employee works on a van assembly line at GM's plant in Wentzville, Mo. as GM announced plans to build its new midsize Colorado pickup truck and is adding 1,660 jobs in Wentzville. Four years ago, America’s Big Three automakers mortgaged all they owned or went into bankruptcy court to keep from going broke. Since then, General Motors, Chrysler and Ford have all returned to full financial health, unlike Detroit itself, which filed for bankruptcy Thursday after years of painful decline. (AP Photo/Jeff Roberson, File)