Ha, ha 'missing' could be a relative term depending on your own priority list (or whether you drive one and add to your priority list, lol). But actually there is about 11 additional main items beyond the V6 that the 2.5t doesn't include. In the 3.5t list only 2 items are shared; 21" wheels & rear side window sunshades. So 3.5t Prestige nets you:
-V6
-Electronic controlled suspension
-Mono Bloc Brakes
-Suede headliner
-Different Seat cover materials
-Carbon Fiber trim
-E-LDS
-Heated 2nd row seats
-Acoustic glass (rear side windows)
-3 zone climate
-12" 3D digital instrument cluster
-HUD
- 3.5t
Badge on tailgate