The Chevy Volt has already passed quite a few significant milestones on the long road to production, and it's now crossed another big hurdle, with the first pre-production vehicles rolling off the line at the Detroit Hamtramck Assembly Plant. Those won't actually be sold, of course, but they are necessary to ensure that all the points in the production line are up to standards before the retail models go into production later this year. That's not only Volt news of the day, however, as the Obama administratio
