They were driving over the speed limit and over-taking on the approach to a roundabout? If so, then I think they deserve to get their car smashed to bits - it's the only way some people learn..
You should have hit the back of his van. The camera was the evidence to what he had done, he would lose his job and all would be well. Stop being the good driver and put these fucking loser drivers in their place.
peugeot drivers are terrible