(03 Jan 2015, 6:02 pm)Dan wrote There was a Volvo B10BLE on the 21A alongside at least one OmniCity, so I had assumed that it would be the Volvo B10BLE which replaced it.
1512 appeared to be sitting spare in Middlesbrough Bus Station for the half an hour or so that I was there.
The allocation from start of play was 4508, 4652 and 4658.
4652 was in the fuel queue in depot at 1635 when I got back, so I assume that something replaced this on 27s at some point.