Doors that would stay open on an incline (it's the same on a Q5)
A +1 on the AC vents (hard for the driver to get enough frosty air)
A more reliable garage door opener/closer
A little bit more resistance on the shift lever so it doesn't move into sport quite so easily
Ability to open pano but close cover all the way (Q5 does this)
18 way seat cars would lower more to make ingress over bolsters easier
For cars with voice control the ability to say Sport, Sport+ and/or select PASM modes.