In our pakset we use a bigger scale for the trains as for example in pak128. To realize bigger vehicles I have to reduce the lenght of this vehicles....
In the past all the vehicles get the same lenght-scale, but I think especially shorter vehicles looks terrible in this scale. So I have rendered some locos and wagons for passengers/ mail a little longer, wagons for goods will follow soon I hope.
V80 with 4 cl/15 as an example: Maybe you need a longer trainstation for the newer version of the train.
/old version of this train needs a stop with lenght of three, the new version length of four.