Cheers Guys, The landscape is done in vue although I will be setting up a scene in vue of yellowstone park in my wolf wip that is in the wip section. Should help show how I use maya, zbrush and vue together in my workflow and how to create landscapes from google map refs relatively quickly. Hope to be getting back to that in a couple of weeks and hope that some of the stuff I post may be of use.
I will get some pics of the tires up later today tomorrow although I may redo them as they did not come out great and need to get some more detail in there.
This tutorial pretty much shows how to do it though.