Hat tip: Autoblog
While touted as an engineering marvel, it does not live up to it's original hype of being an "electric" vehicle. It has a gas engine inside and up until just recently, due to GM being very secretive about the transmission design, it was thought the electric motor would be the primary drive with the gas engine as a back up only. Autoblog as well as other press outlets feel justifiably duped. Of the transmission design:
There's no point in belaboring the controversy beyond saying that the design is 10-15 percent more efficient, according to GM. Since efficiency is pretty much the whole point of the vehicle, we're satisfied, even if we're not happy that we (along with the rest of the media) were misled. However, it's time to move on and focus on evaluating the Volt as a vehicle, and to that end, it's an amazing piece of machinery.