Green Wheels: The Volt's Progress

Though early sales have indeed been disappointing, the glass is at least half full when it comes to electric cars. Last week, General Motors said it was going to boost production of its Chevrolet Volt plug-in hybrid a full 20 percent, with maybe 36,000 (including the Cadillac ELR and European Opel Ampera) coming out of the gates this year. That's a good number.

By Jim Motavalli

March 6, 2013