I'm guessing they will have the same inward opening doors as
with 136C - the plug doors will interfere with the exterior door
controls, given its location is directly to the right of the
door.
joey, i understand your point, but as far as all seen examples
of Citaro with "Higher-Height" doors, they all are sliding plug
doors. Notice that the rear door on the batch 1 Citaros is
taller than smb136c's.
Do take a look at a example on youtube (you might need to enlage
the video to see it clearly) on a Citaro G with inward opening
doors at the front, and sliding plug doors (of a taller height,
same as the new batches of Citaro) at the mid and rear doors.
http://www.youtube.com/watch?v=rPTvghm9n-w by
NXCoventry
Also, note how much faster the sliding plug doors are compared
to the inward doors, or the current plug doors on all transit buses
in Singapore at the moment.