I haven't read about this anywhere so i'm guessing it's not in the game yet? Like in real life I was thinking that if someone has a motorcycle, they can let another person ride on the back. I know there'd be a problem of some random stranger coming onto your bike and getting a free ride. Maybe you can only hop on with an invitation but then again, if your were being shot at for example, it would take too long to get on. What are your thoughts?