I've done just over 1100 miles in my M3 SR+, and having dampened down the noise from most sources, I am now being bugged by the tyre noise from the Pilot Sport 4s.
- Does anyone have any experience/evidence suggesting a quieter tyre, either for summer or all-year use?
- I already have carpets and rubber mats in the cabin, but note a lack of sound deadening under the bonnet or (I suspect) in the front wheel arches. Are there any sound deadening kits available for these areas?