Pretty sure I'll be going with Yokohama S.drives for M3 summer driving; mostly highway and nothing extreme. Also in the running are Bridgestone Potenza RE750's and Michelin Pilot Sport PS2's. Any insights on the S.drives would be great (and the other two too). My main goals are ride comfort and treadwear.
Thanks.

Grip-wise: PS2s > S.drives > RE750s

Confort and treadwear could be the other way around, but I haven't tried them long enough to know.