A large part of the M11 is not only 2 lanes only, but has no cctv or speed cameras. Using it a lot as I do from The m25 all the way to Cambridge and beyond, I think I can safely say that it is probably populated by the most idiot drivers I have ever seen. The use of indicators and mirrors is forbidden (if they have ever been noticed on the car ), speed limits are targets not limits and there to be doubled if possible... And of course although banned, the odd tractor is not unknown! A big chunk was even shut on Monday due to 'over running road works'! The OP asked how he could explain what happened, simply by telling us he probably got the clue, and to accuse him of causing the accident by stubbornness frankly is really ott unless a previous poster was there at the time and knows all the facts. How many times have YOU been 'pulled out on' by another motorist, or even lorry drivers (who seem to think it's funny to overtake one lorry doing 56mph when they can only do 56.5mph, (again a regular occurrence on the M11)