Chevy Volt is Jolt29/12/2008
Appropriate name considering the near all electric engine design of the vehicle and not based on any previous G1 character I am aware of.
The toy might seem for the Transformers: Animation line but the head and front detail is much greater then the animation line tends to be. Really there is nothing cartooney about the design, a hallmark of the animation line. It’s a simple Transformer but then that is part of the mandate of the Fast Action Battlers line.
Considering the car's multiple appearances on Transformers sets during the summer and Hasbro going through the trouble to create a toy for the car, I do believe this could be confirmation that the Volt is a Transformer character for the upcoming sequel. Thanks to Phil for sending this in.
Source: Transformers Live