Assuming you have an electric car that can go 100miles at 70mph on a single charge, what kind of range could you get with the following configuration? An electric car that runs off the main battery bank. Vents on the outside of the car funnel air to a Tesla turbine while the car is in motion. The Tesla turbine recharges the cars main battery bank. I'm not asking if the car will run forever, I'm wondering what kind of range extension, if any, would the car get from the Tesla turbine?