The organizing Committee has regulations on the weight of cars. If it is less than the specified total amount, it will be punished by canceling the competition results. The total amount of the whole car includes the driver and all his belongings, helmets and gloves. You can't drink water before weighing. In qualifying, it is required that the weight of the car should not be less than 605 kg. At any other time in the race, in order to be fair and light, the speed of the car will not meet the requirements, and counterweight can be used, but it must be ensured that these counterweight objects can be fixed on the car and can only be removed if tools are used.