clipped from www.engadget.com

While most of the Automotive X-Prize entrants are vehicles built from the ground up for maximum gas mileage, Poulsen Hybrid's entry takes a considerably different tact, with it consisting simply of a kit that can be attached to any old car. That kit consists of two hybrid electric motors with rare earth permanent magnets that (as you can see above) are mounted on the outside of the vehicle, which are tied to a 72V 120Ah Deep Cycle Lead Acid battery pack on the inside. According to Poulsen, once installed, the system effectively turns a front-wheel drive car into an all-wheel drive car, and results in a driving "effect" that is " equivalent to freewheeling down a 3% grade," with the accelerator needing to be depressed less or not at all to keep the car moving. Also unlike most other X-Prize competitors, Poulsen intends to make its kit available to the general public in the not to distant future, and for the relatively bargain price of $3,300