Stagecoach MCSL - Preston Depot

[Valandil]

RE: Stagecoach - Preston and Chorley Depots
I am not sure if this is the best place to ask, but it's worth a try!
I saw a Stagecoach hybrid bus travelling up the M6 today, just north of Stoke-on-Trent.
I am not 100% sure because I only caught a glance as it whipped by in the opposite direction, but it looked to be an Enviro 200.
It was also blue all over, with about half of it light blue and half mid blue.

Does anyone know where this could have been off to?
Would much appreciate any information!