Electric vehicles, in the broad sense of the term which includes hybrids, still have a lot of room to improve. Here's an example of an incremental step forward that, when combined with other small improvements, adds up to something important.
The California Air Resources Board (better known as CARB) has approved $27 million for its Air Quality Improvement Program, a statewide effort to provide incentives for the purchase of advanced-technology passenger cars and heavy-duty trucks.
Gasoline cars usually get more fuel efficient over time - though there are exceptions to that, such as when everybody decides that what they really need to carry a couple grocery bags is a big SUV - and electric vehicles should follow the same path.
George Lucas has been using the characters from the Star Wars universe to sell all kinds of stuff, but this might be the greenest one yet. C3PO and R2D2 appear in a Japanese ad for the plug-in version of the Prius.
When the first generation Prius was launched over a decade ago, it was a niche product. Most people didn't know what a 'hybrid' car was supposed to be, and potential buyers were very suspicious of the car's reliability and safety.