The new PTS 21.2 update has fucked up some of the collision boxes of the new Derry. They're way bigger than they're supposed to, specially the cab and rear hitboxes, as shown below:
Thanks for Amynue for the pics and for noticing it
[PARTLY FIXED/PTS 21.3] Derry Special 15C-177 FRONT collision boxes a bit too big
The issues have been mostly fixed with PTS update from 02/02.
The rear part of the Derry is now fully fixed:
The front, however, is still a little big, as shown below:
This is the closest the truck can get to an obstacle:
Also, the steps to get in the cab has a hitbox that's centered for some reason:
