Gearing from within Vehicles

[H@buster 1]

Hey everyone!

I have a minor issue with my group:

Only I am able to access the car trunk while in it, as long as I'm not in the driver seat.

However, noone else is able to do that, which is a shame because it would really come in handy to change stuff while driving.

Does anyone know why I am able to do that but noone else is?

Thanks in Advance

H@buster