I'm reluctant to create some threads as minor UI, broken text or views are already likely slated to be fixed or have been for next release. As such, I'm not sure on the intention so I'll offer feedback rather than classify as a bug.
On the new TUZ 108 "Warthog", you can equip a low saddle. However, you are limited to turning only a few degrees when using the 5-slot flat-deck or sideboard semi trailers as well as the 5 slot step-deck. The exception is the gooseneck which has a narrower deck at the saddle and can facilitate turning. The semi fuel trailer is obviously missing because of its length but I'm unsure if the other trailers mentioned should be an option?