As the we move on with the implementation the documentation get outdated.
This is the main issue.

Inside A GMC 4201
The trailer of the GMC 4201 is huge, it has the capacity to carry atleast 3
standard cars inside of it with room to spare. In a pinch you could probably
fit about 50 seats in here, safety would be a prime concern however. 
A Male Human (Unicorn) (dual) is sitting here.
A Male Human (Unicorn) (dual) is sitting here.
A huge RV has been parked here. (Yours)