PS4 vs PS4S vs Cup2The Pilot Sport 4 and 4S are the road tyres,with the 4 designed slightly more for comfortand the 4S more suited to track work.The Cup 2 is the Michelin track day tyre and should be considered if you plan on doinga lot of track milesKPISubjective 主觀判定,乾地 cup2 滿分 & 溼地 PS4 滿分