Given a scenario here...
Let's say if the MK3s were to get refurbished, SBS had no choice
have to give up all O405s (even though they had just refurbished in
less than a year or so). Or if SBS still decided to keep O405s
instead when the MK3s get refurbished, then the current fleet will
get overflowed (i.e. no ample space to park at the depots). By the
time, Euro V Scanias are being rolled out.
To avoid the problem, SBS can only keep refurbished O405s and to
withdraw the Mk3s in the later part of this year in order to
stabilise its fleet in every depots when new Euro V Scanias rolled
out into service.
But then SBST confirm wan MK3 to be refurbished de
