Quote:
Originally Posted by Kothar
On this xdrive should get even better traction.
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Traction is a function of the tire, not the vehicle, not the drivetrain. With xDrive, more tires can be under power and generate their inherent level of traction, but at four contact patches instead of two. The traction capability of each tire remains the same; it does not get better. The enhanced forward motion is a result of more tires with their existing level of traction being under power to move the constant weight of the vehicle. The tire's traction does not increase, and the car riding on top of the tires has no traction with the ground.