APilot Sport is not going to be an H speed rating tire. The Pilot Sport AS4 255/40zr20 is a 101Y XL, which matches the C8 A6 20" summer tire spec: 255/40 R20 101Y XL High Performance. It's also not an Audi OE tire. Interestingly, unlike the PS 4S where there are many OE variants, there appears to be no OE variants of the PS AS4. Noty'all have seen the review from toptirereview, see here: Which Michelin is better? Primacy 4 vs Pilot sport 4 - Top Tire Review They went through all the tests and the most surprising one is of course the Rolling Resistance difference between the two. For those that said the PS AS 4 seem to have drop in the 10-15 range, that makes sense MichelinTyres reviews and ratings. Read unbias reviews and roadtests of Michelin tyres. Michelin Pilot Primacy (52) Michelin Primacy 3 (190) Michelin Primacy 4 (146) Road vs Track vs Slick Tyres; Michelin Pilot Sport 4S vs 4S * (BMW) HT vs AT vs MT vs Winter; Overallranking. Wet Braking. Being a label " A " tire in wet braking , Primacy 4 is known to be one of the best wet braking tires out there. In 2021, it was the best wet braking tire in 2 test while finishing twice as the runner up as well. Its worst every outing was 5th and the biggest deficit was 8.9% against the best tire. Average Ranking: 3. .

michelin primacy 4 vs pilot sport 4 review