(20 Apr 2014, 1:39 pm)AIG20 wrote E400 19194 is also on the "E" services, with its rear display showing "A6" instead of "E6". This must be the same E400 that shows "34" instead of "X34" on its rear display.

This happened during the Olympics too. All of the Enviros loaned had A1/A2/A6 on rear.

Service 4 operated by a mixture of Enviros today - some of the older 36xxx ones, some of the new 36xxx ones and at least one gas bus (I saw the one with no rear branding on the window).