Burnsy - if you KNEW he was tailgating and there was a sliproad to your left then moving into the middle lane for the junction would have been the sensible thing to do......you should never brake to let people on the motorway, they have to give way to you and judge their entry whilst they're at the top of the slip road.

In a situation like you were in it's not a matter of fault, its a matter of keeping everyone as safe as poss.......blame can be dished out afterwards.

I had a 1.4 cvh fiesta and did 90 mph everywhere it had a twin choke weber on it and was pretty frugal......i'd suggest a setup somewhere that knows carbs, and disconnect the choke.