It would be so cool to have dryveby. For passengers, they just need to roll the window down (or break it) and start shooting, either getting their arms out the window or shooting from inside. And for the driver more complicated, you'll be able to shoot, only in first person and you have a probability to lose the car control. Also, it would be cool too to add alcoholic drinks, and when you are drunk, make it hard to drive, like, if you press "d" to turn right, there is a small chance to turn left.