Not one to be one-upped by Hertz -- which already announced a plug-in rental program that'll include the almighty Tesla Roadster and the diminutive Smart Fortwo -- Enterprise Rent-A-Car has just announced that it'll be the first to offer Chevrolet's Volt later in the month. The company's Mark Christopher Auto Center in Ontario, California will have an undisclosed amount in stock for daily and weekly rentals, and it sounds as if it'll be grappling for more just as soon as the
