When I had my S-03s in northern VA, the roads were pretty good and I never complained, although they did get somewhat noisy rather fast, but nothing unbearable. Then I moved to Poland, and the roads here are so bad - I was experiencing major tramlining and just terrible ride quality - very harsh. I quickly got rid of the S-03s and replaced them with ContiSportContact2. That was a step-down in terms of performance, but night-and-day in terms of comfort and quiet ride. Since I can't push the car hard (I'd risk damaging the suspension and bending rims in this pothole hell), I don't miss the performance aspects at all though.
I'll possibly try the GS-D3 next, or the new Dunlop SP Maxx.


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