Fitted these gyres to my M3 last year and have covered around 5000 miles in them and I have to be honest i don't really have a bad word to say about them. I managed to get a pair of rear gyres in this size for £250 by shopping around and they have been no trouble. I have used the car at Santa pod on michelin pilot sports and these, both in the dry and both giving great results. Have also done plenty of winter driving in snow ice and still never let me down. Not sure about the wear on them yet as need to do a few more miles first, but really good so far, still have plenty of meat left on them.
The other reviews on this site seem to have quite a negative opinion of these gyres but I think they are well worth a look. Maybe because of the 35 profile they have a better sidewalk than other sizes in the same tire?... Either way I am well pleased and would recommend the tire to other BMW drivers.

These tires are dreadfull in the wet,i have had the wheels lock up under braking at 20mph and the rear slide out on roundabouts,very scary.I also find that they tramline quite badly.The sidewall is soft and i think that these tires are basicaly budget without a budget price.

I put this cooper tires on my mazda and I drove 300 miles and I return the tires afterwards.
I used to have bridgestone potenza 040 before.
If you change directions after 80mph just feels loose and input on the steering feels like you are going to spin.
The side walls is mega soft and rolls a lot.
The ESP was acting every roundabout at 40 miles p/h with this tires. I don't recomend.