I had seen Lances on route 859 on at least one or two ocassions
(the first ocassion, which I remember very clearly, was when it was
turning into Sembawang Way from Sembawang Drive; that was a long
time ago), but it was always the U.K. versions, never the Malaysian
versions.
I also remember that a long time ago, there was even a Nissan
Diesel U31RCN on that route, and that was before I even moved into
that area (but I was already a student at one of the secondary
schools over there).