Well, I have seen a lot of posts on the class 730. But I feel like butting in as well. These units are 3 or 5 car EMU's that are part of the Aventra family of trains. This unit could be layered on WCML and/or Birmingham Cross City. This Unit is highly requested and for good reason. There is already plenty of material to build it, with Aventra sounds coming from the class 710. Well, don't have much more to say really. I am sure other people go into more detail...