95 lsteg it appears as though if you're looking for an '04 or newer X5 without rear air, your only choice is a non-sport 3.0.
I've seen very few 4.4s with front & rear air susp. During my searching, I think I came across 2. If it has the ride height selection switch, it has it.
jsears-I'm 99.99999999999999% sure you're right.

Scott