(22 Feb 2015, 10:13 pm)Dan wrote A photograph of one of these was shared on the "Arriva 2015 Order" thread, so it shouldn't be too long before they start arriving... I'd imagine it was being tested around the yard, and this usually happens about a month in advance of the new buses arriving into the fleet.
If they've got next stop announcements they'll be tested on the full route first, I've got a photo of 7522 and a Max E400 being tested around Ashington depot with their destination blinds on.