agreed. i took this bus last time and the door closed fast,
another bus is SBS 452E. this bus, delay 2 sec, 0.5 sec close also.
and this bus weird weird, the exit door sound only come around 0.2
sec after it starts closing. i remember there's a MBO405 i board
like you described. the door closed so fast that it "reopen a
little bit" and close. not sure whether its 553Y.
