I believe it is still the longest platform, but it isn't in on a preserved line.

Yes, sorry I was forgetting we were talking preserved. My mistake:-(

Last year I was on a rail tour that stopped at Manchester Victoria, the train was made up of what I think was 14 Mk2's (quite a big train for the routes it was taking), and when it arrived at Man Vic on return jorney the manager said that around 8 coaches would fit on the platform, so passengers had to move down the train, dont know if the whole thing did fit on.

wow, what a come down for Manchester and what was the longest platform in Europe when Exchange was still there. Hope to be their later this month on the Royal Dalesman