I'd love to buy one, but I like the concept of a range-extender using gasoline, diesel, or E85, like the Volt is designed. An engine that is only used for charging batteries can run at a constant RPM, so the engine can be operated at peak efficiency. I would hope that a small engine running at constant RPM could easily do 80MPG.

That way I can have the benefits of an EV but still have long range. This way I don't need to buy two cars, using more energy and natural resources.