I decided to take these tests a step further and have something a bit more practical. Here we have a simple fence and a car driving through it... sort of. I was originally going to make it more realistic, adding nails with Boolean modifiers and constraints so that more pieces would hold together like a real fence, but I think this looks good for now. I may do the nail thing later on.
The car used here is one I got from: www.3delicious.net/
They offer their models for commercial use.
Tools used: Blender 2.68a Internal Renderer with Rigid Body simulation and Bullet constraint tools. 100 frames at 25 FPS. Converted to Flash (.swf) with ConverterLite.
Comments are always appreciated!