Until our own instrumented testing can be performed, our guess is swapping your ultra highperformance summer tires with their low treadwear ratings for them would mean less dry traction. However, they have good stick for an all-season tire. And grabbing a set of F1 All Seasons for a wet and rainy fall/winter season should make a huge difference in that daily driven, RWd GM's manners- and could very well make the difference between a stable, hohum wet commute and a whiteknuckle drive to work!