Hello JB ( your proper name?)
Your first paragraph certainly sums up Audi marketing - if you want the best of specs., you find them in the S Line etc., together with large wheels and low profile tyres, all aimed at road holding which of course every Audi buyer wants! Or do they? - as you are finding!
I’m in the exact same camp as you, and I simply want a nice smooth ride, but I don’t think you will find that in the S Line - perhaps even with smaller wheels, allowing increased profiles.
One requirement would be to look up the stats, on the ones you are interested in and check if they were available with optional 17 inch wheels. If they weren’t then it’s generally a no-go due to insurance implications.
Another potential harsh ride consideration is to check whether the normal tyres are XL or not - if they are, that will adversely affect the ride quality.
Build record printouts for particular cars are usually obtainable from dealers- I’d enquire at the Parts Dept.
I really do know where you are coming from, and have been there before.
If you do find the car you want, then also ask for a copy of the service record before purchase. FHS can be elusive once you have signed the purchase paperwork!
Regards,
Gareth.
Please let us know how you get on.