The verdict is in on hybrid cars: Americans love them. But just suppose, some environmentalists have been asking, you had a bigger battery pack in your hybrid and the ability to plug it into the wall. Wouldn't that give you the ability to drive to work on electric power, with the small gas engine available in reserve for longer trips? This concept started out as an environmentalist's dream, propelled by activists like Felix Kramer of Calcars.org and the utility- backed Plug-In Partners. But now it's headed for the market. And other high-tech green cars are on their way, too.
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