Sport package also includes thicker steering wheel and few other cosmetic changes...

As far as sport suspension delete that has to do with firmer springs and shocks that are available in european market but not available in the US. If you order sport package in the US, it will come with sport suspention delete option to keep standard suspension components and you cannot change that on a US car. Adaptive Drive is different, I'm just talking about traditional suspension.

FWIW, standard suspension + 20's and run flats will be responsive enough ride for a heavy SUV. I mean it's not like you'll be taking it to the race track.