Worth noting that the Golf R and S3 use Haldex, like the GLA45 and F48 X1. There are a ton of Haldex versions out there, with the VW cars having the latest, which can send over 90% of power to the rear, while MB uses a few generations older that can send a max of 60% to the rear (the same as the static xDrive split). The Mk7 R finally has a fully defeatable DSC, I'd guess the MB doesn't.
It will be interesting to see which version the new X1 uses. I haven't paid attention to the 2AT to see if it's offered with awd yet.
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