hi,
You have several ways to simulate an A.I,
in this case,
- use triggers on the way to the car
- When the vehicle is in collision with a trigger, rotates the vehicle on an angle for turns
- You can also manage the speed via the triggers
This is a simplest solution, you can also use "TimeOut" instead of the triggers but is not reliable.
You also have another solution more difficult to set up but very reliable, and closest to an A.I
the "Pathfinding"
WIKI >
en.wikipedia.org/wiki/Pathfinding