The Chevrolet Volt is a plug-in hybrid car. The four-door Volt comes as a hatchback and has both an electric motor and gasoline-powered engine. If you need to save money on gas you are in the right place. The car averages about 60 miles a gallon on long trips and 100+ in town depending on how far you drive. If you charge up daily you may not need to buy gas at all. Many parking garages offer free charging. Some hotels offer charging, but any standard wall plug will do as well.