U.S. automakers are facing tough times in Europe. Is China the next big opportunity for Ford (NYSE:F), General Motors (NYSE:GM), and other automakers? The Detroit News journalist Bryce Hoffman is the author of "American Icon: Alan Mulally and the Fight to Save Ford Motor Company". In this installment of "The Motley Fool Money Radio Show", Hoffman talks about the next big opportunity for U.S. automakers.