SHANGHAI, CHINA - OCTOBER 13:   General Motors Chief Executive Fritz Henderson (C) and Ding Lei (L), general manager of Shanghai GM, visit the GM sales center at the Pudong District on October 13, 2009 in Shanghai, China. China has overtaken USA to become the world's largest auto market after strong growth in recent months. Getty Images logo Getty Images 1 month ago

SHANGHAI, CHINA - OCTOBER 13: General Motors Chief Executive Fritz Henderson (C) and Ding Lei (L), general manager of Shanghai GM, visit the GM sales center at the Pudong District on October 13, 2009 in Shanghai, China. China has overtaken USA to become the world's largest auto market after strong growth in recent months.