Obviously not using your mirrors or you'd have seen him coming and could:
a) Let him in
b) Stopped him getting in
Either way it could be forgotten in seconds
Sadly a typical response from a Beemer driver - enough there to at least warrant a chat from the boys in blue i'd have thought - hopefully more. At the very least careless driving. Good luck.
I would say the Merc was 100% at fault, although the camera car appeared to be travelling too fast on the straight, they did slow down to a reasonable speed approaching the bend and were almost staionary when the collision happened. If the Merc had approached the bend at a resonable speed there would have been no collision. I would contest the insurance company decision.
nice story