It's simple, GM's spreadsheet contains a labor cost that foreign companies simply don't have. For every GM car built today, $1,500 of the sales price represents labor costs. They are losing and will continue to lose until they restructure that piece of the puzzle. Union Politicans lie, numbers don't.
Ithink GM and Ford realize that (30000 jobs to be cut at GM, 4000 at Ford). They DO still build quality vehicles (I drive a 2004 F-150, built at the Norfolk VA plant), but they have to learn to compete to survive. I thought they had learned that lesson in the early '70s, when Toyota and Nissan were kicking their butts, but apparently not. It's sad, but when all is said and done, in today's global economy it's survival of the fittest.