Ok, try this for Laguna 2003. This is pretty much a rebuilt AIW except for the garage and pitspots.
I'm not the greatest driver so I hope the AI is fast enough
Definitely they are better than before and they do pit. I still see the odd car not make it on fuel over a long race, but usually only one.
This AIW is for Laguna Seca 2003 by Parnassus, it's not for dutchdevil's version.
Let me know if you see any other issues