Not really
When I was playing with the truck stuff I noticed all profiles cane used and the profile selection will stay in the menu - until you select a truck profile.
After that in most cases no more vehicle options are available, only the truck parameters can be adjusted.
Weird thing is that occasionally you got them back with a cold start or emulation switch.
Also this emu switching does not always work for devices outside the officially supported range.
On request the TT support stated:
Being a dedicated Truck system the additional vehicle profiles are for the use with vehicles that might require special routing.
Our dedicated truck units are for permanent istallation so there is no need to go back to a car profile.
After explaining that not everyone uses the feature rich WORKS device but instead use a X20 or X30 model:
If you require different profiles we suggest use a dual setup.
Use a profile selection of your choice on the internal memory but do not select a truck profile.
Copy the content of the internal memory to a SD card start the Tomtom.
Select truck profile and set the dimensions as required.
To go back to car routing simply remove the SD.

So I assume visible vehicle options after a truck selection is only a "glitch"