The Virgin WCML▸ services from Birmingham to Edinburgh and Glasgow are formed of Voyagers, despite running under the wires for the complete journey. They were split off from CC with the change of franchsie (or a month later to be precise.)
I posted elsewhere that we must be mad to run diesels under the wires and that was for part of journey because it's not "economitcal" to sling wires over the diesel leg. So we run a
DMU▸ instead of loco hauled with traction change.
To run Diesel Birmingham to Glasgow must make us collectively insane. It would make us totally off the planet, if as has been suggested elsewhere, it is cheaper for Virgin to run a
DEMU▸ (note the E for electric) rather than an electric train. We can never have a rational transport policy.
Perhaps we should ask Bulgaria for our 87s back.
There is a competiton for a British slogan. I suggest. "Mad as a Hatter