(12 Jan 2017, 10:51 am)Michael wrote What colour is it?

Light blue towards the front and dark blue towards the rear. 
Three yellow lines on the windows (similar to the Euro star squiggles) and a vinyl number around the place where the colours change, similar to the X34 uses.
The X in the vinyl number is also used on a vinyl 'Express'

Lots of vinyls.

There must be a couple out as one has just gone towards Sunderland, along Sunderland Road.