Thread: sDrive28i or xDrive28i
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      05-23-2013, 05:32 PM   #5
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Drives: 2015 Alpina B6; 430i; X5 40e
Join Date: Jul 2010
Location: Orange County, CA

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x - hydraulic steering assist (heavier but better feedback)

s - electric steering rack (light feel and numb compared to hydraulic).
Appreciate 0
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