As some will say, AD is kinda like the "old" sport package set-up on previous BMWs (before it was a stand-alone option). Pre-2010 on the X5, when you got the sports package, AD was included--now it's separate an a la carte option.

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2008 X5 4.8
Jet Black/Black Nevada/Dark Burl Walnut
Adaptive Drive
Premium Pack
Tech Pack
Climate Pack
Sport Pack
20" Wheel Option
Premium Sound
Sirius Satellite
Rear DVD Entertainment
Multi-Contour Seats
Comfort Access
3rd Row Seat
Heated Front Seats
Running Boards
3M VentureShield Paint Protection Film