Following the 2011 model year, they dropped adaptive drive from the packages and it became a standalone priority 1 option at $3500. So if you're looking at the newer models, options are different then if you're looking at a 2011.
Suspensions for the 2012+ 35i Sport Activity and ZMP without standalone adaptive drive aren't the same, the 35i gets the sport suspension delete on the SAV version until you add ZMP which adds the sport suspension.
On the 2012+ 50i, you get the rear air suspension with ZMP, I'm not sure how that affects the front suspension though.
Adding adaptive drive on top of ZMP does give you a discount for AD on both the 35i (only $3150) and 50i (only $2650). I would assume this is because it costs them less to go from the rear air suspension or the sport suspension to adaptive drive, but you know what they say about assuming.