EFFECT: The magician is aided by a small toy car, which never fails to stop at a spectator's selected card. This handcrafted, solid walnut car measures 2" by 3" and includes "headlights" and a "spare tire" on the back. Most importantly, however the rubber tires are made to stop on a dime, and will not slip at all, even when used on a glass surface. Popularized a few years ago by Juan Tamariz on a national television special, this effect is still very popular.