General Motors Co. will build the 2012 Chevrolet Malibu at its Detroit-Hamtramck plant, The Detroit News has learned, adding to news announced Monday that the company plans to spend $336 million upgrading the factory to also produce the Chevrolet Volt.

  The Environmental Protection Agency declared greenhouse gases, including tailpipe emissions, a threat to public health Monday, setting the stage for sweeping regulation of the nation's cars and trucks.

  Washington -- The chief executive of Chrysler Group LLC and Fiat SpA said he wouldn't be CEO of both companies indefinitely but would give up one of the titles within the next 24 months.

  Joe Hinrichs faced a tough choice in 2000 as he contemplated returning to the auto industry after a stint in private equity: go back to General Motors, which helped put him through college and gave him his first job, or accept an offer from Ford Motor Co.

  Washington -- The battle over the closing of more than 2,000 General Motors and Chrysler dealers isn't over yet.

  Shanghai -- China extended its lead over the U.S. as the world's biggest auto market in November, with production and sales more than doubling from a year earlier to both surpass 1 million vehicles.

  General Motors Co. executives will update reporters later this morning on the automaker's North American operations.

  The chief executive of Chrysler Group LLC and Fiat SpA said European nations must do more to restructure and reform their auto industries, as the United States has done.

  Chrysler wants to make its new Ram truck brand as big, bold and profitable as the full-size pickups that are its cornerstone, and plans to do it by expanding into commercial vans and potentially big rigs.

  Shanghai -- General Motors Co. said Monday it has appointed Tim Lee, its vice president for global manufacturing and labor relations, to head its international operations, part of a shakeup that last week saw the departure of Fritz Henderson as CEO.