This is my attempt at making a Touristic Bus - Coach. I tried to keep the vehicle 6 studs wid, like all other LEGO models are, but now, when it's made I see, that 8 studs would be better. Well, next time. :)
As mentioned already, creation is 6 studs wide and 33 studs long.
Both doors can be opened. I tried to build both doors the same size, but 4 studs wide front doors was too wide. I tried to build with SNOT technique and made 3 studs wide front door, but then "Battle droid arm" for opening the door can't be mounted. So I decided that the front door will be two and the rear will be four studs wide.