asmith225 said:
To cut a long story short I think the Impreza driver was really p*ssed at being taken by a Megane and took offence, needless to say he wanted to kick my head in. He was huge and didnt see the funny side of it in the slightest

Wont bother him again
There are some real losers out there. Next time you see him make sure you give him a bit of taunting haha. He may be a big bloke but sounds like he's making up for something else that lacking.
Sounds like you did the sensible thing, knowing me I'd have got out of the car and kicked off. And I'd end up in hospital hahaha