One thing I've failed to understand about the Volt is the high price. The most expensive Prius (list on the Toyota website) is just under $30k. The Volt has a bigger battery, but a much simpler driveline. It should at a minimum be a lot closer to the price of the Prius than to the price of a new Corvette. If I sound bitter, yeah, I'd have loved to have bought one, so don't think I'm hating on the vehicle itself.
I would love for someone to come out with a mod for an extra battery pack and plug-in capability for my Sonata hybrid. It does pretty well on mileage and on the long trip to the in-laws' last weekend we got 45mpg and it was quite happy doing 65mph in EV mode. Just wish I could plug it in, and have more cowbell. I mean battery