(17 Apr 2019, 3:21 pm)Dan wrote Interesting - I suppose the burning question therefore is which indiGo services are being upgraded, and which ones are being downgraded?

If the North Tyneside examples are currently being fitted with USB sockets, it's an upgrade above the current high-spec indiGo.

(17 Apr 2019, 3:42 pm)RBZ 5459 wrote Rather than spec, I was thinking age of vehicle on that one. So 701 to 709 to Percy Main, with some of Percy Main's indiGos - 'newest' fleet number wise getting the USB and repaint treatment - going the other way. So for the 85/86 at Washington, Percy Main 40/41. *Scratches head on 40/41 PVR....*