Here is a concept car of the future which was design by Harsha Vardhan who definitely sees the future as it looks in the movies.
He is visualizing a car that is powered by an magnetic field generated by on-board electricity powered systems which means Zero emission. The concept is called the Transporter (TW) Twin Wheel, the electric engine will produce a magnetic field which will rotate the large wheels. The wheels are suspended over a superconducting fluid where the changing magnetic field produces the motion needed to propel the vehicle. See more photos after the break..