Might be worth mentioning that two new Optare Metrocity buses have turned up for use on the car park shuttles at Newcastle Airport - believe they are YJ16DXO/DXP.

Current vehicles are:
MAN MCV Evolution AE05OVA (BUS3)
MAN MCV Evolution BC05JHU (BUS2)
MAN Meridian FJ09PXO (BUS1)
Centro MX59KUE (BUS4)

I expect some of these will leave now though.