Scalextric Digital Race Track system is designed to support up to 6 racers on a 2-lane track. Special digital slot cars are designed to run on these digital systems, but Scalextric digital also provides microprocessor kits to update non-digital Scalextric cars as well as other brands to work on their digital track system. Your existing Scalextric Sport layout can also be converted to Scalextric digital. Please check out our digital info page for information on all our digital sets. And remember, with Scalextric you can use regular Scalextric track to expand your digital track set. You only need digital track for lane change areas, etc... So check out the Scalextric Track Accessories page for straights, curves etc to expand your new digital track set!