Right now the following bugs happen to passengers:
1. passengers can be yanked off of/out of vehicles in which they are riding by enemies, even though the vehicle is not close enough for the driver to be pulled into combat
2. when the driver joins combat, the passenger can wind up in a different battle circle than the driver
3. when combat ends, and the driver is leaving the battle, passengers can be pulled back into battle alone even though the driver is out of the range of the enemies.
please fix these issues - if you are a passenger in/on a vehicle, if the driver can't be affected, you should not be affected either. It's getting very old to have to flee out of battle, get mana back, and then port back to the driver who has been in a safe spot all the time.