DR24, please let me know what you think of the beta I posted on here. It's too slick for the AI cars, but if you adjusted it for your offlines then they should run pretty good. I might do a tacky version of it anyway on the final as well as the slick version. I think it's pretty close to the real one, granted I've only seen pictures and videos so haven't been there in real life.
Here, try the attached file for offline use. The AI cars should be pretty fast. To edit the AI to match your speed or similar, just open the track.str file inside the track folder in wordpad and scroll down to the AI section and it's fairly self-explanatory from there.