(25 Apr 2020, 11:23 am)Storx wrote The Citaros will have to be moved from the X30 and 6 all day for when the LEZ comes in anyway so could imagine when the new buses eventually arrive they will have something to replace them lined up.

But until the LEZ comes in force (might not be January 2021 now), surely it would be a good fuel saving measure compared to a heavy duty Citaro being allocated.

Daytime X30 boards (incl Sundays) are already Euro 6 with the E400MMC's and DD StreetLites.