After logging a near-record 8,475 miles over the previous three months, time behind the wheel of the long- term BMW 550i xDrive fell way off. Our ongoing battle with BMW's infernal spec run-flat tire ...

i cant compare this car to the same 2011 550i m xDrive well worth it ...many things replace or upgraded so no worries but enjoy 400 horsepower! This car has all possible features. There is few errors ...

Just as we began the second quarter with our long- term BMW 550i xDrive, a right-front flat began three months of tire problems. When the BMW arrived, we promptly replaced the Goodyear Eagle LS-2 ...