Extended mileage

anyone interested in extra mileage on their ev ? i produce replica bubble cars running petrol engines but i have an idea that could give extra mileage and shorter charging times to an ev, this is a simple and inexpensive mod but i need to talk to someone who knows more about electricity than i do, contact if you are interested PS, under certain circumstances charging may not be required at all !! ok i sound like a mad man, trust me i am not, this is a simple piece of equipment but i need someone to work with me on the electrics, history has it that the simple things are usually the best !!

To Bambycars,
I have some limited electrical knowledge, and would be very interested to learn more about how you propose to extend the mileage on an ev. If you are still in the system please feel free to contact me.