Definitely DID see one today at Carlisle - it arrived empty northbound at platform 3, stayed for a few minutes then departed southbound empty again.
Incidentally, this didn't go down too well with many of my fellow passengers who'd been ejected from the TPE Edinburgh-Manchester service at Carlisle, "terminated due to lack of drivers"
Incidentally, this didn't go down too well with many of my fellow passengers who'd been ejected from the TPE Edinburgh-Manchester service at Carlisle, "terminated due to lack of drivers"