One thing to consider.
I tried installing a "longer treadlife" tire on my 1 series. Tried using the Michelin A/S3 with a much higher tread wear rating than the previous MPSS. Well, because the A/S3 had so much less grip, they were constantly spinning a bit when accelerating even briskly. Needless to say, they only lasted about half the mileage of the MPSS. Switched back to MPSS for current set and they are lasting much, much longer, and I can't wait for them to wear out so I can put on the MP4S, which has even better grip and longevity.
I tried installing a "longer treadlife" tire on my 1 series. Tried using the Michelin A/S3 with a much higher tread wear rating than the previous MPSS. Well, because the A/S3 had so much less grip, they were constantly spinning a bit when accelerating even briskly. Needless to say, they only lasted about half the mileage of the MPSS. Switched back to MPSS for current set and they are lasting much, much longer, and I can't wait for them to wear out so I can put on the MP4S, which has even better grip and longevity.