The 65 has recently been extended from Kingston to Chessington world
of adventures at night only.

I expected them to bring back the "N65" designation but they didn't,
instead they put an awkward half-blue-background map on the bus stops,
on which the estimated time drops by some minutes immediately after
Kingston.
Perhaps there is now a general policy not to invent new N designations
when the route is an extension of the original route.