In the thread here in the forum that shows many Murchison 2 screenshots there are many different engines and rolling stock. Do those come packaged with the 2010 version of the route, or must they be downloaded separately?
There is a lot of high quality rolling stock included in the add-on. Some of it has not been available before and all of it works in native mode. But the screenshot thread and the payware thread both pre-date the add-on release and do show rolling stock that isn't included. Most but not all of it is available though for download through the DLS or other Trainz sites. The best thing to do is to ask Michael about any specific item you are interested in.
William
Edit: A quick check shows that there are 260 items of rolling stock included.