Even with taking the car to the track 4x per year you are still better off with the Pilot 4S.
1. Longer Tread Life vs S3's
2. Better Traction for everyday street driving vs S3's
3. Better in the rain vs S3's
4. Heat up faster vs S3's
5. S3's do have edge on the track versus PS4's but only slightly.
**6. Michelin states you should get 50,000 km's tread life and if you don'y you will get pro rated money back. The tire shop confirmed this for me and they sent back to Michelin and depending on how much tread life is left and condition of the tire you will get money back.Even if you get $50-$100 per tire that helps for the purchase of new ones.
Bottom line is the Pilot 4S's have a reputation for a reason and is why it is the drivers choice for high performance cars!