use of wind powered turbine in cars ?? helloo.. i'm just thinking to build an wind turbine powered car using with electric motor like an hybrid car .. there are certain question arises in my mind are .. that the use of turbine as a source of energy will be efficient or just theoritical concept as will there be too much drag and will the power generated will be too less and how much of dia should i need of turbine blades for making an average small one person car ... and even i'm thinking of using regenrative breaking as Electric motors also allow us to use the magic of regenerative breaking .. will it be possible ?? and even will it be economical ?? please if any knows about it ..