Yes the boundingbox is updated with c_setminmax...I can see that when double pressing F11.

My above code is definately crap...so don't look at that!
What I want is that the player calls a function when it enters the bounding box of a rectancular model (scale_x is bigger than scale_y). I could easyly achieve the same by making the model non-passable and calling and event trough event_impact...but I don't want that because the model needs to be passable all the time.