First reason. There are 1100 units of Scania K230UBs while there
is 200 + 1500 units of Volvo B9TL. Doesn't it get boring to have
Scania K230UBs running everywhere with the same bodywork? At least
the Volvo B9TL have 2 bodyworks (1 is coming soon).
Second reason. The Scania K230UBs vibrates more than the B9TL.
Although some B9TLs are an exception.
Third reason. Volvo B9TLs are more efficient and have really
good acceleration. Alongside the reason that it has more seats and
it is much more quieter inside the bus than the K230UB. It won't be
a surprise if I sleep on the B9TL on my way to school.
dun think its fair to compare single deck with double deck. of
course double deck got more seats lah. should compare the K230UB
with OC500LE
