Modeled up some modifications for the new Defender.
Instagram - @glen.cordle
(http://live.staticflickr.com/65535/50834051746_dc4536909a_3k.jpg)
is the groundplane geometry as well? I like how the tires interact with it.
The ground plane has a displacement map applied to it so it has some geometry, and clipping below of course. With some adjustment I found that he stock noise texture scaled way up came pretty close to the surface forms in the backplate.