First of all, I hate templates, and I STRONGLY recommend to do not use them! They simply suck (the only one I really LOVE is the multiplayer template created by Superku). They are very good to learn from, but they do not fit any playable projects! So I suggest you take a look at the code and workshops, to understand how things work and create something on your own!
About those two demos (AUM90 and AUM37), I've mixed them together to get more or less good looking results, with AI finishing the lap and at the end of the race showing up results with the lap time. So note that demo is pretty basic (and not made to be used in your games, but more for learning purpose!), everything is the same as in the original code (no collusion for cars between each other etc...). BTW, AI cars never user physics engine, only the player's car did (in all car workshops and templates around the forum). So that's why you can notice some strange collusion issues in templates.
So here is the demo:
http://www.filedropper.com/caraiScreen:
Is that a working demo with timer, semphor, and Ai cars moving?
I got the car running from templates, but the other is where I'm stuck
Take a look at this:
PhysX-based car and AI traffic cars Note: download link is down, but you can easily download it from AUM 101 under 'Hot at the forum' section (don't forget thanks painkiller for such an awesome contribution).
Greets
Edit: I can suggest you to take a look at the source code of
Ackmania. It's one of the best racing cars around the forum! But I'm pretty sure the code is too complex for newbie, but don't give up, it worth a try!