(02 Dec 2015, 12:55 pm)BJ10VUS wrote It makes sense, with the 57 having been blue previously. However, the "Diamond" Citaros were orange to start with, but I reckon they'd have probably needed a repaint before going on the 57 anyway.
I think the Diamond Citaro's were due a repaint a next year but were done early because of the route changes.