I consider both the F1A3 and F1A5 are too donut-shaped due to their softer sidewalls, making the looks of them much less attractive than the sexy-looking Michelin PS4 and PS5. That's the reason why I replaced my F1A3 with PS4 (and later PS5) for my previous Audi 8K.
Now my KL comes with T005 factory fitted, extremely noisy on the motorways and less confidence in the wet in twisty B roads (luckily no rain in London for such a long time recently). Had to reconsider F1A6 or CPC6 in coming months (PS5 a bit too pricey)
Any news on the F1A7 / PS6? Will they come in 2027?