Given
61%
while driving a
BMW X3 2.0d Sport
(225/45 R17) on
a combination of roads
for 18,000
average miles
These came fitted with my x3 and used them for 4 summers. Run Flats in 245/50 r18. In winter I fitted the car with Michelins Pilot Alpin 4.
Before fitting the Michelins I had the impression there's an issue with my suspension (despite being adaptive): every road crack, every bump, every tram rail would be sent all the way to the chassis and not in pleasant way. Once I moved to Michelins for winter, I started considering not switching back. In the end I used the P7 for several summers however not at the recommended pressure (2.2 ATM), but rather at 2.0 (while the Michelins are still very comfortable at 2.2 or even 2.4, with the same load).
Braking was good, stability ok.
Tire wear not bad, they still have 4-5 mm rubber on them after 18k miles HOWEVER after 3 years of use (~10k miles since for the rest of the year I used the michelins) the tire's shoulders began to get deformed; not very obvious, but you can feel it when moving your hand over it. Also this led to a very bad tire noise in the cabin, at any speed above 30mph, increasing with speed (I initially though it's coming from the wheel bearings). After reading on various forums about similar problems with P7 and given the complete lack of attention to comfort, I decided to throw them away.
All in all, it may depend on your car, but I'm not going to use P7 run flats (and pirelli in general).