(06 Apr 2025, 6:42 pm)L469 YVK wrote It's not the age but more so the fuel economy. GNE have previously tried (but failed) to improve fuel consumption on the Volvo B9TLs with GKN mods. 

If the StreetDeck can deliver a rumoured 9mpg as opposed to a rumoured 6mpg from the B9TL, that's quite a significant increase. Not forgetting some of the scheduled workings attached to 307 & 309 boards including the 353.

Obviously there's other valid arguments that the 51/52/93/94 might be better suited for StreetDecks. We don't have the access to the numbers that GNE do.

Surely that's an argument for the 51/52/93/94 instead which also has B9TL's and doesn't need any extra power, at all, since they potter around at 30mph for the majority of the route...

They'd also be an upgrade on the ex London junk floating around now, whereas the Cobalt ones are a better quality so for those routes would be a downgrade.