General Motors sold over 23,000 of the plug-in hybrid vehicles in 2012.
The automaker says increased popularity in California is driving sales. The Volt is now eligible for that state's sought-after carpool lane stickers.
General Motors sold over 23,000 of the plug-in hybrid vehicles in 2012.
The automaker says increased popularity in California is driving sales. The Volt is now eligible for that state's sought-after carpool lane stickers.