Bletchleyite
Veteran Member
I thought that National Express had de registered their coach services as they were having to carry free bus pass holders.
Can confirm that Oxford to Cambridge X5 is a Bus as I use my free bus pass on it
The X5 is an oddity - a walk-up express stage carriage route using coaches. Far more of these operate in Scotland than England.
Though even the "other X5", a similar "Beeching bus"[1][2] in the north Lakes, now uses Gold-spec buses rather than coaches, which are excellent for enjoying the views!
[1] The Oxford-Cambridge one is well post-Beeching; the Lakes one may well be the descendent of the actual "Beeching bus".
[2] It's interesting that the two similar routes share a number.