Sixteen of Caledonian Sleeper’s new carriages made their first trial run from Scotland to London Euston on January 22.
Final stages of testing and approvals have now begun for the £100 million fleet ahead of the overnight service beginning to operate its new stock by the end of May.
The trains will initially be introduced on the Lowlander route between Glasgow/Edinburgh and London before being rolled out onto the Highlander, which serves Fort William, Aberdeen and Inverness.
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