Added Suspension to the body and built a dynamic bridge that would interact with the vehicle, still testing dynamics at this stage so I have not concentrated on terrain details.
Background Sounds Courtesy of "SoundBible.com"
Tank Sound 1 Title: Tank, License: Sampling Plus 1.0 Recorded by Microscopia http://soundbible.com/1323-Tank.html
Tank Sound 2 Title: Tank, License: Attribution 3.0 Recorded by snotty boy http://soundbible.com/1325-Tank.html
Credits: Greyscalegorilla really helped me to get a grip on most of the techniques, thanks guys.
Cinema 4D Dynamics Connector. For anyone interested here is a tutorial by Chris Schmidt he takes you through how to build and connect Tank Tracks using the connector from modynamics. http://greyscalegorilla.com/blog/tutorials/cinema-4d-dynamics-connector-series-tank-treads/