How to better simulate a NASCAR race by using AI

[ Sorry for my poor English ]
I try to simulate a NASCAR race, but the result is not very satisfying
I use Chase Mode in AI Control, letting AI to chase a invisible leading car, but there always exist some cars that cannot follow up and turn around on the oval track, and if Awareness is turned on, cars will keep a very long distance to each other, which seems different to real NASCAR racing.
I also try the Script AI Manager, but AI cannot replay my recording with 100% accuracy. AI seems to be slower than the script I record and have problems with starting(e.g. stall the car) .This brings unsolvable difficulties to my recording, because the difference between my ideal recording and actual AI performance will cause cars to crash into each other.
As we all know about NASCAR, the small problems caused by AI can ruin the whole race. So are there any solutions to this? How to use Script AI manager to let the cars drive at high speed, with short distances to each other and without crashing? Or, whether there are other ways to achieve this and how, e.g. flowgraph, or simply just use BeamMP Multiplayer?
Thanks for your answers in advance

 

I hope this helps:

 

This video really helps!
Maybe I just need to take more attempts
Thanks a lot for your help!

 

No problem!!!!

 

For a more modern version you can use this

 

I feel like we've done this before on a different thread.

 

This is helpful and I will have a try. Thanks a lot!

 

No problem