Animating particles with collision avoidance? I need to drive a large number of small 2D cars around on screen in a fairly random fashion... I have the Trapcode Suite.  I'd really like them not to overlap each other.  What's the easiest way to achieve this? Any good tricks using C4Dlite maybe? At the moment I'm using Particular to splatter them all over the screen, and it looks a bit rubbish.
I solved this using the built in Foam particle render - it does have basic collision avoidance