(09 Dec 2021, 6:36 pm)RobinHood wrote Arriva must buy new for the CAZ, that can't be avoided.
The majority of the Arriva fleet is Euro 6. It's Stagecoach who have the problems with the MANs. On paper bar a few Solo's at Jesmond and a few spare B7's I believe the whole Arriva Northumbria fleet is already done.
There's buses being released from London no doubt to fill the gaps including a batch of DB300's soon.