Isn’t euro 6 specified for some routes that shields operate (sure 10/11 is) I think there is also some link with funding from South Tyneside council as per the E300s that were bought for the Economic services in 2011. I know the CAZ has caused all this but surly Stagecoach should have planned this better and invested into it instead of ploughing everything into there “pet” depots north of the border as per usual