(But I can see where an owner would pay extra to have the car charged at, say, 4x the normal 220v outlet rate. But not THAT much more! Wonder what the maximum C charge rate is on the Volt (will look up tomorrow).)
I looked at a volt the other day. They plug in to 110 volts.
Charge the Chevrolet Volt in 4 hours with the Chevy Volt SPX Voltec 240v level 2 charger or in 10 hours using the provided 120v car charger.