(07 Jun 2015, 6:39 pm)Tommy_1581 wrote It isn't rare - it doesn't have a set working. AN20 is allocated whatever is on standby, as the services start to reduce there's no need for standbys to be in the bus station.
Would still class it as rare though surely, an X21/22 branded Enviro on a contract (?), surely a standard Arriva vehicle should be operating it.