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      11-04-2012, 09:38 PM   #6
ibimmer954
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Drives: '23 i4 M50, '15 M3, '18 911
Join Date: Jul 2007
Location: San Diego, California, USA

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You can't have the Integral Active Steering option on an XDrive car. Those are incompatible options. If you are building a 550i, then you may add IAS. It is a standalone option. It isn't standard.

Also, the Dynamic Handling package is a separate thing than IAS. Dynamic Handling has to do with the amount of dampening over bumps. Integral Active Steering changes the amount of effort needed to steer the car. Especially at low speeds. IAS also adds some rear wheel steering.
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