If the car in question is a UK or other Euro-spec A4 1.8T, then indeed, the Sport model has more hp. RE: Pirelli P6000, those tires have a reputation for getting quite noisy when worn, as do the P7000SS. My old Yokohama AVS Sport were quite nice when brand new, but after 20-22k, they got to be about as noisy as BFG M/T truck tires. Taka