Car racing game

Hello

I am creating a game for the graduation in my school, which is related to racing cars, I use the Unity version of 2017, because it has the Vehicles and Utility packages. With these packages I made a game where there are 4 cars, one is handled by the user and the rest are based on WayPoints. My problem is that cars driven with WayPoints are not competitive, that is, they do not run very fast, with the result that the user's car passes them very easily and comes out first very easily. I tried to set the cars to run faster, but to no avail. Can you help me;