If your question is missing then Idk or can't comment.
2. How good are the AI, and can they be used in multiplayer? They seemed to not know I was there (for the most part) in the demo.
They are dumb, 95% of the time they will just plow through you at corners, If your slower of course. I just don't bother using the AI.
5. Any major stability issues? How is the multiplayer code?
I have had any crashes or anything when it comes to the actual games performance.