The Volt gets pretty good gas mileage because, it, uh, doesn't run on gas. I think it's hard to even compare the Volt and a "hybrid" or any car where locomotion is directly tied to an internal combustion engine. The Volt is a true EV that has a gasoline engine to watch over the battery. If you drive under a 40 mile "session", the gas engine won't need to start... ever. Imagine that, from a near dead American car company that also makes 400+ HP hot rods. What else? I don't think GM licenses hybrid technology from Toyota... They seem to be doing pretty well without Toyota's help. I am reasonably sure GM's 2 mode hybrid system is also more sophisticated, albeit different, from Toyota's "synergy drive". I saw my first Tahoe hybrid the other day. Sure strange listening to a big SUV "whine" quietly and drive off.