Tracer Racers utilize Light Trail TechnologyTM as they blaze streaks of light on Skullduggery's patented Glow-in-the-Dark track. Each Tracer RacerTM beams down purple light rays from its undercarriage onto track specially engineered to emit glow remnants long after the racer has passed. One of four new Tracer RacerTM drag racing sets, and a dimly lit room, is all that is needed to set the darkness ablaze.