Electric Cars Raise the Bar on Fuel Efficiency

It's been a big year for plug-in vehicles. Congress has passed billions in R&D funding and just this week, GM announced the Chevy Volt -- due out next year -- could potentially receive an EPA rating of more than 200 miles per gallon. At the hybrid car industry's second annual conference in Long Beach, the atmosphere was electric. [Correction: In the original broadcast of this story, and in the version available here in this online archive, a reference was made to EPA's rating of the new Chevy Volt. That was an error because the EPA hasn't officially rated the car yet. The 230 miles per gallon rating we reported was what General Motors claimed the Volt would get using current EPA guidelines.]