[dlh1983]

I noticed that Transpennine Express have been 'numbering' their carriages so some 185s have coaches A,B,C and some have D,E,F. This is probably to help with seat reservations for trains like the 6:18 at Liverpool which leaves Liverpool as 2 185s then seperates in to a Scarborough and a Newcastle train at York.

However, some of their 170s have been numbered A and C while others D and F! This would seem to suggest they are hoping to get some middle carriages for the 170s, although I'm not aware of any services being operated by a pair of 170s. If that is the case it looks like the 185s aren't going to be made in to 4 carriage trains anytime soon, otherwise they would probably have been numbered something like A,B,D and E,F,H.