Great Question In these competitions, there are more than 10 drivers. Perhaps 100 or so competitors. Earlier in the week there is qualifying, and on the finals day, the races begin with those who have qualified slowest, and as the day progresses they make their way into the last (A) final. The fastest 10 or so drivers. While it's not an intentional part of the challenge, it is for sure a challenge. Less light makes things harder to see, as well the temperature changes, and the cars/engines will work differently because of this. I hope this answer helps Have a great day.