I am in need of replacement tires for my 2001 740i Sport. The current are Bridgestone Potenza S-03 Pole positions, which I am quite happy with, but are considered max performance summer tires. I am considering putting some performance all-season tires on instead (a slight compromise in performance). Given that I am not doing any slalom in the car (it's a 740) I think the summer tires are likely overkill anyway and I can still get awesome Y-rated all season tires, like the Pirelli PZero Nero M&S or the Michelin Pilot Sport A/S. Any comments? The Pirellis are significantly less, but seem to be on par performance wise. Any facts, opinions and/or suggestions would be greatly appreciated.