Well, i probably would have gone with the pilots, however the dealer was not too communicative on the benefits of having them even though BMW actually specify them for the M135. The P zeros are runflats and only now with the car driving properly seem to be very good. It takes quite a lot to get the back to loose grip!
I ordered in June before reading the info on the Michelins and we decided Runflats had improved in performance with better technology, so runflats it was but the runflat rims are fine for non runflat tyres too.
The car is riding so well now after what happened its like "chalk and Cheese"