4. Start

When race time is up, the warm-up lap starts first to ensure the safety of the drivers. If the driver's car stalls at this time, it will be last at the start; if the driver's car is still in the Pit, the driver will start at the entrance of the Pit. The original parking spaces for these drivers were vacant. After warming up the tires, each car returns to the starting position, and the five starting lights turn on one by one. At this time, if the car still stalls and cannot start, it will withdraw from the race.