'A smart ride' -- a test drive of the new electric cars

"The future is here. It’s cheaper than I expected, and it’s so small that you could fit two in a single parking space," writes Adam Aston, blogger for the Natural Resources Defense Council's On Earth feature. He's referring to the new mainstream, all-battery electric cars that are about to hit U.S. Roads. He takes a test drive and reports on the experience in his Feb. 1 column.