The objective is for one vehicle to get to the finish line first. Vehicles in competition are divided into a variety of classes.
All classes have specific rules and guidelines that determine eligibility.
A starting line device utilizing a set of lights, often referred to as a Christmas Tree , is used to initiate the race. In professional category racing, a .400-second flash of amber lights precedes the important green light, which signals the start of the race. If a driver leaves the starting line before the green light activates, a red light illuminates, signaling a foul start. The offending driver is disqualified. A driver can win the race despite slower elapsed time and speed totals.