Here's why:
* Hybrids: Combine a gasoline engine with an electric motor, but the gasoline engine is primarily used to power the vehicle.
* EREVs: Use a battery-powered electric motor for primary propulsion, but have a small gasoline engine to act as a generator to recharge the battery when it's depleted.
The Volt:
* Has a battery that powers the electric motor for up to 53 miles (EPA rating) before needing to use the gasoline generator.
* The gasoline engine is not directly connected to the wheels and only acts as a generator to recharge the battery.
Essentially, the Volt is primarily an electric car with a built-in range extender, allowing it to travel longer distances than a pure electric vehicle.
