We've been hearing about vehicle-to-grid (V2G) for quite a while, and now a team at the University of Michigan is conducting an extensive study on the technology as part of a national sustainable energy solution. While current electric plants are good at generating power, they often fall short when it comes to storage -- which can be a problem when there's a power surge or when demand increases. V2G will let hybrid-electric owners sell the power their car generates to the electrical power grid whenever the car is not in use. The research team envisions a time when millions of hybrid vehicle owners will come together to create one large battery, allowing us all to play a small part in building our nation's energy independence. And sure, this all sounds good in theory. But wouldn't that mean relying on the neighbors to provide a key piece of the nation's infrastructure? Have you met the neighbors? Doesn't that seem a little... iffy?

Pininfarina said it was going to build an electric car and, go figure, it's actually built one. As we had heard earlier, the car, now dubbed the B0, is the result of a collaboration with the Bolloré Group, which was mostly responsible for the car's lithium metal polymer battery pack. Pininfarina, for its part, seems to have handled just about everything else, and it sure looks to have gone all out, with the car promising a range of 150 miles and a reasonable top speed of 80 mph, plus some suitably nifty touches like two LCD screens for instrumentation, and even some solar cells on the roof to help top off the battery (most of the charging while driving is done with regenerative braking). Pininfarina is also apparently still ticking to its 2010 roll-out date, with mass production set to begin in late 2009 -- no promises on a price just yet though.

Chevy's taking a moment to clear up some misconceptions about its eagerly anticipated plug-in hybrid, the Volt, which had long been assumed (by most) to use its gasoline-powered engine like a WWII submarine -- kicking on and charging the batts to full before switching off again. Alas, that's close but not completely accurate. The engine does serve only to feed the batteries (it's not connected to the wheels in any way) and will fire up when they are getting low. However, it will not fully recharge them, serving only to maintain a 30-percent charge as you keep on motoring. In other words, you'll need to plug that puppy in overnight if you want to get back to silent running and successfully avoid detection by destroyer battlegroups on your morning commute -- or spy cameras.