I think the former. However, the Little Book of Numbers lists 78842 as a spare, stored at Wolverton.There was a rumour last year that 377442 had gained an additional carriage - although I seem to recall it was sighted as a three-car shortly afterwards. Does anyone know whether it's intended to keep 377442 permanently as a 3-car or if it's hoped to restore it to 4-car at some point -and where would the 4th car come from?
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What, for four years?4th car is under repair/rebuild isn’t it?

