Going by the latest track access charges on the Network Rail website, a Class 185 costs 11.35 pence per vehicle mile, so 68.1 pence per mile for the 6 car. A class 68 isn't listed, but a class 67 is down as 58.47 pence per mile, and a mark 3 coach is 6.46 pence per mile (at least I think that's...