A typical, scale , Audi R8R slot car by Carrera Slot cars are usually models of actual automobiles, though some have bodies purpose-designed for miniature racing. Most enthusiasts use commercially available slot cars often modified for better performance , others motorize static models, and some "scratch-build", creating their own mechanisms and bodies from basic parts and materials. Drivers generally use a hand-held controller to regulate a low-voltage electric motor hidden within the car. Traditionally, each car runs on a separate lane with its own guide-slot though recently developed digital technology can allow cars to share and change lanes. The challenge in racing slot cars comes in taking curves and other obstacles as fast as possible without causing the car to lose its grip and spin sideways, or to 'deslot', leaving the track altogether.
Learn how and when to remove this template message Several race formats are employed in competition as time allows. The quickest to run is called round robin, which can be run in either of two ways. The first and least common way is begin with one driver on one lane of the track, a segment usually consisting of 2 minutes is run in which the driver attempts to complete as many laps as he can. The second and most common way to run a round robin is to have four drivers or as many as there are lanes start at a time, and rotate through all the lanes, before being replaced by the next set of drivers. This is known as a "heat" or "consi".