Once the battery is depleted, the vehicle gets 50 miles to the gallon as the generator kicks in to charge the battery while driving.

FORBES: Who Revived The Electric Car?

For those two reasons, the EV-1 project was cancelled, and when better battery technology DID finally become available, the Volt was built as an extended range car, with an on-board generator so that you will NOT get stranded like someone driving a Nissan Leaf.

FORBES: General Motors Is Headed For Bankruptcy -- Again