In a world where aliens have invaded and destroyed New York City, the iron structures of the skyscrapers are all that is left. Humans have developed this vehicle to climb up the frames and escape from the aliens whose inner magnetism render the iron structures deadly. 

This vehicle uses magnetic treads to stick to magnetic metal surfaces. The vehicle is controlled by a remote control, which make the two motors drive the treads forwards. The 3-D printed treads are attached to a wooden frame, which holds the magnets in place.