bolted on four new Good Year Eagle Exhilarates on the M40i.
https://www.goodyear.com/en-US/tires/eagle-exhilarate
OEM Bridgestone Dueller runflats lasted 39,000 miles. The last 10,000 miles resulted in increased road noise and ride harshness.
It just so happened I drove home after having the tires installed in a light snow squall heading up Rte 95 north to Portsmouth.
The new Good Years are as reviewed.
Quiet, softer ride than run flats and very good in the slop so far.