[s-cars] tire recommendation needed

[Taka Mizutani]

The Pilot Sport PS-2 is supposed to be a very good tire, but I would
think it's not best suited in terms of low road noise. I would look at
the tires that are commonly used as OEM tires for high performance
sports sedans:

Dunlop SP9000 and Maxx
Continental Sport Contact 2
Bridgestone Potenza RE-050
Toyo T1-S (no OEM that I know of, but many reviewers say it's pretty quiet)
Pirelli P Zero Nero (don't know about this one at all)
Pirelli P Zero Rosso (not the best tire, but very quiet on our Volvo
V70R- same size and similar weight to your S6 Avant)

Taka