When I was goofing around in the CSAT showcase, I discovered a bug when pressing V (I'm not sure what the function the default of V is called, it puts the player through a stepping over something animation) and pressing the space bar next to a vehicle immediately afterwards. You must be close enough to the vehicle door to allow for the space bar to activate the enter vehicle as driver/passenger.

What happens is that if the combination is pressed on the driver side is that the player enters the vehicle per normal, but the head is facing down the player's neck.

When pressed on the passenger side, the player sits in the air with half of the body out the top of the cabin, and the head is not aligned with the rest of the body.

I have only tested this out on the CSAT ammo and covered trucks. I'll test on other vehicles.

EDIT: It works on all CSAT vehicles that do not restrict the player viewport (tanks, etc). Trucks, Helis, etc.

Also, the head is not misaligned. Rather, it is the player viewport.