How to make AI for rivals in a racing game on Unity?

Question

Unity

I want to make an AI for a checkpoint racing game. How do I know the distance of the green line? (to turn the wheels in their direction)

Answer 1

Distance, this is the difference in coordinates, what distance do you want to get? What does the green line mean? Does it exist or does it need to be built, and if it needs to be built, how should it be?
Are the red and green lines pettibicular? ...