See also:

Changing wheels
Your BMW is equipped with run-flat tires as standard. This eliminates the need to change a wheel immediately in the event of a puncture. For information on continuing to drive with a damaged tire, ...

Tire inflation pressures for X6 xDrive50i
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Drive Dynamic Control gives the driver the choice of car set-up.
With Drive Dynamic Control, the virtues of sportiness and comfort can take precedence as the situation demands. Drivers can make their own choice of suspension settings in NORMAL, SPORT and SPORT+ ...