G.M. Tones Down the Volt

RICK WAGONER, chairman of General Motors, unwrapped the production version of the series hybrid Chevrolet Volt as part of the company's 100th anniversary celebration on Tuesday. The Volt, whose small gas engine does not drive the wheels but keeps the 16 kilowatt-hour lithium-ion battery pack charged, will look nothing like the concept car that G.M. carted around to auto shows for years.

G.M. and Ford Officials Seeking U.S. Loans to Meet Fuel Goal

Executives from General Motors and the Ford Motor Company pressed their case on Tuesday for $25 billion in federal loans in a series of high-level meetings with lawmakers in Washington. The appearances by G.M.'s chairman, Rick Wagoner, and Ford's executive chairman, William C. Ford Jr., underscored how vital the industry considers the loans as it tries to meet tougher fuel-efficiency regulations.