Just to help clear up any remaining confusion, I have a '14 650 x-Drive GC M-Sport Edition with Adaptive Drive. As Doug said, the AD is always on with no button to control it an any way. On the driving modes, it does have all 5 modes (Eco+, Comfort, Comfort+, Sport, and Sport+). Love AD and have had it in multiple manufacturer's iterations (BMW, Mercedes, Infiniti, etc) on my last 5 cars. Definitely worth the $$ IMO.
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