2011 Chevrolet Volt is a plug-in battery

Finalist number two is the 2011 Chevrolet Volt. The Volt is a plug-in battery/gasoline hybrid hatchback that can power itself emissions-free for an estimated 40 miles solely on its lithium-ion battery pack. The full charge requires four hours using a 240-volt line or ten hours using a 120-volt line, and after the electric power is fully used the Volt can continue on for as many as 300 additional miles by gasoline.

The Chevrolet Volt is not a hybrid. It is a one-of-a-kind, all-electrically driven vehicle designed and engineered to operate in all climates. Powered by GM's revolutionary Voltec propulsion system, it consists of a 16-kWh lithium-ion battery pack and electric drive unit that provide pure electric range between 25 and 50 miles, depending on terrain, driving techniques and temperature. A 1.4L gasoline-powered engine extends the range up to an additional 310 miles on a full tank of fuel by operating the vehicle's electric drive system until the car can be plugged in and recharged or refueled. This distinguishes the Volt from electric-only vehicles, which cannot be operated when recharging is not immediately available - such as during a power interruption or on a long-distance trip.
Chevrolet Volt (2011)
2011 Chevrolet Volt is a plug-in battery