(19 Feb 2016, 3:32 pm)G-CPTN wrote Whilst I applaud the new livery for the X21 Castles Express, I wonder if the blue base colour will lead to confusion with 'another operator' - or, maybe, there aren't any Arriva services along that route?
Anyway, I do think it looks good.
Part of the route is in competition with the Arriva 6. No chance of confusing them, though, since the 6 has a big silver 6 emblazoned on the side.