Quote:
Originally Posted by ///M TOWN
They're both the same to me.
Turned off it's only RWD.
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Quattro, xDrive are AWD (each with its own different set-up and distribution of traction)
M5 is 4WD
AWD has a differential - computer controlled - you can not turn off one axle
4WD has a transfer case - you can manually turn off one axle (4WD / 2WD)
Jason says in the title M xDrive AWD which is confusing.