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Old 11-19-2012, 07:46 AM
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tim330i tim330i is offline
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Join Date: Dec 2001
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Mein Auto: Ti Silver 03 M3
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From BMWUSA.com -

Unlike other all-wheel drive systems, we've built xDrive, BMW's intelligent all-wheel drive system with rear-wheel bias for surefooted grip on slick or uneven roads, without sacrificing the feel of rear-wheel drive. It smartly sends power to the wheel or wheels with the surest footing-and it does so in milliseconds. That means under normal conditions, drive forces are spread out with a rear-wheel bias. But the moment the system senses excessive wheel slip, it subtly shifts torque to meet the changing conditions, offering maximum available traction and superior handling on all surfaces-despite the weather conditions.
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