a little bit forensic here...
did you collect or take any pics of the blokes tail lamps?
when they brake lights are on, they are hot, when someone smashes into the back and breaks the lights fragments of glass stick to the hot metal.
no doubt you didnt as, why the hell would you...
anyway, all the best and i hope it all works out for you.
i left my house at 11.15am this morning to drive from swindon to bath, to me a cunting hour to do 10 miles!
no smash, no blood spilt...
the only thing i can think it was, is the 50mph speed limit by the roadworks near chippenham, cos after that it was fine!
was stuck in all the traffic on the m4 last night too, lorry jacknifed by J13 and it took me a cunting hour to newbry too, then another smash on the m25 with a mere 27 mile tailback!!
i hate motorways