In response to several of the preceeding posts:
1) Electric cars are different than petrol. The range will be the same at 100 or 40 miles an hour.
2) The cost of electricity to charge the vehicle it amounts to under $1.50 (US) in the most expensive places. Electricity can be generated many ways. In the worst case, if the power is out, you are getting a car that gets 40 mpg and still had reasonable pickup and acceleration.
3) The EV1 was not the perfect car. It had problems, it's short range and heavy batteries limited the vehicle severely. Think of the Volt as an improved EV1. Better batteries, better engineering, and a petrol generator to recharge the batteries.
4) The concept car wasn't very aerodynamic. The new design is a compromise, staying as close to the original concept as they could while making it as efficient as possible. Compared to the other options, the Volt looks very nice, at least to an American eye.