Since you said I didn't do my research, I shall present my
research to you now.
Service 58 has no perm Euro IV KUBs, but 8 Euro V
KUBs.
SBS 8500Y is an AMK Townlink bus, perming Svc 268. It is indeed
rare for an AMK Townlink bus to be deployed on Svc 58.
Yes, I agree that Svc 518 has perm Citaros. But for a 61xx/62xx
Citaro to cameo, it is indeed rare because usually 66xx Citaros
will cameo or even Euro V KUBs, sometimes Striders. Only a low
chance for 61xx/62xx Citaros to cameo on this Svc.
Sorry. Over here I generalise "rare cameos" as the bus type, not
the rego. And yes, I'm sure almost everybody else too. We don't go
so specific, as long as it is a citaro, we don't really give a damn
about the rego. That is a common cameo.
Then on 58's case. Now why not now, I say that 39 has a rare
cameo of a EEV? Seen almost everyday. The trait of EEVs and EEIVs
are that both will cameo and mix around very often, even if the
service only solely operates one of them. Before 36 got its EEIV,
let's say, EEIVs were seen on 36 almost every single day. Weekends
is no rule out. It spoils the excitement, you see, if u put what
generally is not rare as a rare cameo because we won't see that it
really does the service very seldomly. Just my two cents worth,
hope this does not impact too much.