No question, I just wanted to share a thought... I saw a very old episode of Top Gear last night, where he put magnets onto the front of two model cars, and drove them at each other. Because the magnets were orientated so that they would repel, the cars couldn't crash. This was given as a way of preventing accidents. However, if this was done with real cars, although the cars wouldn't touch each other, they would sustain just as much damage as if they had hit.