GM Says Volt Will Get 230 MPG
I. Want. One.
The main difference between the Volt and today’s hybrids (e.g. Prius) is that the electric motor always turns the wheels. When the battery is run down (after ~40 miles), the gasoline engine is used not as a means of propulsion, but as a generator to run the electric motor and charge the battery on-the-fly. This way, the motor can run smoothly and efficiently, without having to rev up and down in stop-and-go traffic. You also get a nice performance boost, as electric motors tend to perform better from a dead stop than internal combustion engines.
When the battery technology advances to the point where it’s a bit more affordable (the Volt will originally start at $40k) this will be a complete game-changer.