Thanks for your reply Gareth...
in answer to your questions the existing 260/30/20 on the car are load rating 95, speed rating Y and the are XL.
if the 265/35/20 will increase the tyre height too much how about going with a 275/30/20? There seems to be much more choice.
From what I can make out the 265/30/20 are what the car was originally sent out of the factory with
regards Ollie