I have run flats on my 2014
I have run flats on my 2014 X3. I've had two nail punctures on one tire and just have then patched at a local shop for $30 each time.. I usually don't go in right away and just opt to top up the slow leaks, as needed. If the tire is completely deflated you don't want to drive it because you can definitely feel it. I have 45k and it is time to have them replaced (front ones anyways). I don't have much to compare it to because my last car was a ford escort and when I needed to replace a tire I'd go to the auto wreckers and buy one for $10. I'm now looking for 245/60/19's used. Unfortunately, they won't be $10 :)