(13 Apr 2015, 5:52 am)Dan wrote Euro 5.
I think the only vehicle in the 'Enviro' series with the possibility of retaining the old-style with the Euro 6 engine is the gas bus that Sunderland has. 28001 - 28017 are Euro 5, while 28018 - 28040 are Euro 6, though both look identical.
I always thought that Stagecoach's 10000 was Euro 6?