Messages

Can someone please show me how I would go about how driving sequences, like in Police Quest. Where the player presses the arrow key when they would like to turn their car. Also how could my player change clothing like if you click on the closet or something. Also can you have more than one playable character in your game? And is it possible to make a game respond to text commands, like in the original police quest. My main question is about the driving, however.