GMAC, the former lending arm of General Motors Co., is in talks with the Treasury Department for a third injection of taxpayer aid, a further sign of the U.S. government's entrenchment in the U.S. auto industry.

GMAC, the former lending arm of General Motors Co., is in talks with the Treasury Department for a third injection of taxpayer aid, a further sign of the U.S. government's entrenchment in the U.S. auto industry.