What's the speed rating on yours? is it less or more than Z and if so did you check with your ins company, just noticed a few older threads saying this may be an issue.
Just rang ins. company and they didn't have a clue but said they'd find out and let me know, original speed rating is Z 150mph max, the tyres i'm looking at are W 168max so surely this can't effect the insurance if the W's can with stand greater speeds.

Ok ins. company have now said it's fine to change to tyres with different speed rating as long as it's a higher rating than OEM and you notify them of the change so you can go up from Z but not down even though W is before Z in the alphabet it can apparently go faster, all of this seems stupid to me any way because my car would probably only just crack 135mph 15 short of the Z rating and a speed I would'nt dream of doing
So back to the original

which tyres should I get.
My head hurts