Car game?

Since I played funky truck at www.teagames.com, I’ve always wanted to make a game like that, and since I haven’t found a thread about this, I’m asking now.
How do you create this game? I’ve noticed that the back wheel, is the wheel that makes the car drive. The Physics are fantastic, and I would like to make a game like it, but maybe not as advanced at the start. Where is the script supposed to be? In the back wheel, in the frame? What is the script? I would like to create something like funky truck, so if anyone would like to help, just reply to this thread.
I know math, like trigonometri, vectors, etc, but I know it in class, and not in Flash, and the reason for this, is because I can’t “see” how it will work when I write it.
I became a member of this site, so I could hopefully get help. I know some actionscript. I’m not a noob, but I’m not an advanced scripter, and I usually write my script in a MC, and not in the frame.
Please help.

Sincerely Yours.

Greatfaith