I have a 2013 X3 and
I have a 2013 X3 and purchased the extended tire warranty with run flat tires all around. I have had six tires replaced during the time I have owned it and all four tires replaced once due to them being worn out after 30,000 miles. At $50.00 per tire to replace that is $300.00 and I paid $1,892.00 for all four I can honestly say I hate run flat tires due to being dependent on the dealership to replace the tires and in doing the math, I have spent probably four times the amount I would have with regular tires and not had half the wear I would have with conventional tires. To the snobs that say "If you cannot afford a BMW, don't buy it" I say FU! It makes no sense to me that my suspension is not affected when I am driving with one new tire and three fairly worn tires. In reading the reviews, I can see all of this is a big money-grab by the car manufacturers and not about safety. I have had to change out flat tires and also had patches done and the amount of time is significantly less than having to go to the dealership that may or may not be open and getting the tire replaced. With the knowledge that the run flats are significantly heavier than normal tires, I can only imagine the improvement in my X3 performance if I were to switch to regular tires. My two front tires are near their end of life and I am seriously contemplating the switch as it would cost me around $900.00 to replace them versus $800.00 for four new tires and not worry about the rest of my extended tire warranty.