Dry: Good tire in dry conditions and normal driving, but they very loud and the ride is very harsh when the asphalt is not perfect.
Wet: Spirited driving in wet conditions is not really possible, the tires lose grip easily even under moderate acceleration in corners and have a hard time getting traction when accelerating.
Wear: The wear seems good, 7mm tread left all around after roughly 11.000 miles (18.000 km).

Tires were replaced after 11k miles by non-RFT tires due to the harshness / wet traction / high noise issues.

These came as standard fit on my 230i, 225/40/18/88Y fronts and 245/35/18/88Y rears. First time I have experienced Bridgestone run flats. Dry grip was very good, wet grip nothing more than average. However the first thing I noticed was the noise - very loud. Had Michelin PS2 ZP on my E92 325i and that tyre was so much quieter and offered far better wet grip. Back to the Bridgestones and wear is very good, got over 30K from rears and still a few mm of tread left on the fronts. Most of my mileage is motorways but does include quite a few spirited B road blasts. Wouldn't buy again, and will look for something a little softer with better wet weather grip and hopefully a bit quieter.

Compare to Continental Contact 3 & 5 RFT I drove on 328i earlier, this one is certainly better than them, but not as good as Goodyear Efficient Grip RFT in terms of comfort and wet grip. Dry grip on S001is way better, similar to those non-run flat. Harshness on bump is unbearable, rolling noise is tremendously high. It came with the car, is a waste to dump it but I certainly will replace it after 10,000 km. The only thing good about this tyre is dry grip, nothing else!

I have found the Bridgestone Potenza runflat's on my BMW 425d to be noisy and this has got worse as they have worn. The ride is very firm and you feel every blemish in the road. The grip is very average in the dry and not good at all good in the wet. Wear rate has been good, 25k miles so far and still some life, but will change soon to a different brand.

Came as standard on my BMW 440i. My main gripe is wet grip. For example, even with modest throttle, these tyres spin on anything but bone-dry tarmac so I have absolutely no confidence accelerating from junctions in damp or wet conditions. Similarly, I have found them squirmy and easily slippable under braking in the wet. They seem fine in the dry with reasonable straight line grip and progressive grip under cornering but for UK conditions, I couldn’t recommend them.

Got 18000 miles from the rear, 25000miles from fronts in 330E BMW.
My main complaint is that over roundabouts the fronts would squeal horribly at relatively low speeds and understeer a lot.

I preferred the tyres when the outer edges of the fronts had worn away. They no longer squealed and gripped better. -I think this is more to do with the BMW suspension setup though (M sport suspension, 17" tyres

These tyres came with the car when purchased and the car had covered 23,000 miles and had approx. 6mm on the fronts 225/40/19 and 6mm on the rears 255/35/19 Run flats.

Being used Audi's with the S Line suspension I had no issues with run flats as they are both quite stiff and you can feel the road when you hit a pot hole and in general driving, so the Audi S line set up is similar to BMW run flats.

I do approx. 90% motorway driving and have had no issues with the tyres, they are smooth on flat new surfaces, they grip well in the dry and are very progressive. On rough surfaces yes, you can feel that they are run flats but again this was the same on my previous Audis. In the wet they handle very well however the car is X Drive so the handling should be good in all conditions.

What has really impressed me is the wear rate I have now hit 33,000 miles so 10,000 since owning the car and driving on these tyres and they are on 4mm at the front and 5/6 mm on the rears so excellent wear rate so far.

Overall nice tyres, good grip wet or dry and excellent wear rate so I can’t complain.

Really struggled with these tyres, which came as standard on the car, a 2017 BMW M240i.
Did several track days, and experimented with wildly varying pressures to try and find some kind of decent compromise between extreme outside wear and grip. Low pressures gave the best track times (~2.2bar) but they wore very quickly, all the way over the edge of the tyre, scraping off the Bridgestone marking. Totally inadequate grip for the power of the car, but good for practicing throttle control with DSC off.
They tramline horribly, to address this I ended up running at 3bar, which gave the most comfortable feel for normal daily driving.
Very good wet traction though, and completely adequate for road use, but not a good tracking option

Got this tires cheap from a friend upgrading his BMW 1-series tires.
I really like the steering feels and feedback from this tire, really spot-on and direct compared to my previous Continental CSC3 SSR (yeah i use runflats). Perhaps this is due to its stiff sidewall which the CSC3 was lacking.
Dry grip is fine but not great, wet is a bit scary, especially after the thread has worn out to maybe 50%.

In summary:
Likes: Steering feedback and feels, dry grip, progressive feedback on traction
Dislikes: wet grip,noise

After 12 years of RFT experience on an e90 BMW now have S001s on an F31 320d Msport xdrive. They are the most comfortable RFT tyre to date but that may be due to BMW rather than the tyre. Over 12m use I have found a real variance in the ride quality dependent on temperature, in UK winter they are back to traditional hard RFT ride, but in Summer much better. The main reason I would not buy them again is due to the tramlining and general wandering on heavily used UK roads, on freshly surfaced roads the car tracks dead straight so I know it’s not the car at fault. I last experienced this with Bridgestone RE050 RFTs, cured on my E90 by switching to Conti sport contact in 3 and then 5 guise, so it’s a Bridgestone problem.

Low profile 22545 r19 run flats; rough ride, slightest road imperfection rattles the entire X1. They do corner well, hope they wear fast like other reviews, can't wait to replace with a more comfortable (non-runflat) all season tire. Summer tires won't work at all even in light snow.

These are runflats fitted to an F30 LCI 330D M-sport. My last car (also an F30) had Continental SportContacts and even in their worn state were quieter running than these. These are lasting 50% better than the Conti’s though. That’s really the headline for the 2 main runflat choices for the current 3 series.

My interpretation is that these must be on a harder compound. The Bridgestone wins significantly for mileage and also steering feel is better. The Conti’s are quieter and better riding, but suffer significantly faster wear. As for grip, the Conti’s hang on longer outright in both wet and dry, but the Bridgestone’s have the edge for breakaway progression in the dry. You pays your money, you makes your choice…