Moin, Those DoSto coaches we have are nice in many ways, what never seemed right though, was the sound. They have very characteristic whirring-grinding-howling-buzzsaw sound coming from the wheelbearings, that sets in a certain speed. Here it starts at about 1:39 In TSW, that sound is missing from the DoStos, but it is present in the Class 377 that came out yesterday. These make an extremely similar sound, it seems. With both coming from Bombardier, I suppose there are some shared components in the bogie assembly. (The bogies themselves come from suppliers though) So, my suggestion is... you probably guessed it. Use the 377 sound as the base for an upgraded DoSto sound pack.