I heard from someone that the older Vogelsitzes that are on the
CAC UDs and the O405s, the bum area is a wooden plank with only the
fabric cover over it, and the backrest cushion is very thin... isit
true?
Also, TIBS originally had most of their buses in different
bodywork, but i noticed that their interior fittings are almost
similar; specifically the green aircon ducts on the O405s, DAFs,
Scanias, O405Gs MK I/II. Does anyone know why the bodywork
manufacturer's interior fittings weren't used instead?
Oh sure it is thin. Imagine being sit on for more than 10 years
from 5am to 12 in the morning the next day; won't you be flattened?

For the second one I believe that this was done in order to
create a common image within the buses of the same company.
Everything is built according to TIBS specifications that they gave
to the bodywork, or else why do the Scania Striders look so
different from the MkIV Striders of SBST or even SBS999U looking so
different from the Volgren bendies even though both actually came
from the same series of bodywork, just that TIBS made
specifications to make it look different from SBST's