The newer batches of Scania K230UBs have a 1½ width seat behind the driver
commonly known as a "granny seat", however, they are not the first
type of buses with such a seat. Which is then the first type of
buses with the same seat (same design, different seat cover)? How
many of such seats are there in that type of bus? Where are the
seats located? Note that 8030L uses Vogelsitze Pino series seats
which are of a different design.
SMRT's volgren o405g, 2 seats. The seats are located just after
the articulator, opposite of each other.