I have now completed 1000 miles with the Michelin Pilot Sport 3 tyres on the front. I had the existing Goodyear Eagle F1 Asymmetric tyres moved to the back during the PS3 fitting, they had 6mm left so a good comparison. Pros:- Softer sidewalls make the ride slightly more comfortable over the Goodyear. Wet weather performance feels better than the Goodyear in standing water. Road noise less compared to the Goodyear. Cons:- They are more expensive. They look very average. I am not sure they suit the S3, I have never seen the traction light come on so much in the dry since they have been fitted. Mostly over camber changes or ripples with significant power applied. Not sure if the softer sidewall means the tyre is moving around more than the Goodyear but if it doesnt improve I will be moving them to the back. My S3 is due the Haldex oil change in 2,000 miles but can believe this would affect it ?