A hybrid car is a car that uses two or more distinct power sources to move the car. A plug-in hybrid car (the term used is PHEV) is a hybrid car with batteries that can be recharged by connecting a plug to an electric power source. Chevrolet Volt is one of the plug-in hybrid cars.
Chevrolet Volt Plug-In Hybrid car appears on the upcoming robots movie Transformers: Revenge of the Fallen. One of the robots in this Transformers sequel named Jolt can transform itself into a Chevrolet Volt car.