Consumers have filed a total of 2 complaints for 750XI models.
My complaint is that the run flat that comes with the vehicle is so unstable that any flight bump on the road results in a bursted tire. Even driving on the interstate highway is no exception. I have had to change the tires do often that i am now very reluctant to drive the car. I have even contacted bmw customer service to complain but to no avail. I believe this particular model has a mismatch of the tire width and specifications. Please investigate as this is a very serious road safety issue.