Just out of curiosity, which ones don't you get?
I won't be able to rattle all of them off here, but it's a good start in addition to
@Greyfixer's list. I am also noting differences between all body styles, not just the wagon. Feel free to copy/paste, edit, and correct my list as the thread goes on. It would be neat to have picture comparisons of all differences but that'll be an undertaking... maybe someday.
Many of these differences are driven by the regulations of their respective markets.
These are the features we do not get in North America, as the vehicle comes at the dealership:
Powertrain
Diesel engine options (mostly less powerful options, but some comparable to the 2.0T)
Gas engine options (mostly smaller, less powerful options)
V6 in lower trims than GS/wagon
Manual 6-speed transmission
9-Speed transmission (wagon)
FWD (wagon)
Exterior Appearance
20" wheel options
Skirt/bumper molding (Search Commodore ZB RS trim)
Blackout package (ST doesn't really count)
Painted rear calipers (some gray, some red)
No cladding/GS style facia on wagon
Paint options (flat gray, bright blue metallic, and a couple others)
Larger decklid spoiler
Interior Appearance
Chocolate colored leather seats
Saddle colored leather seats
Different perforated seat design
Different steering wheel buttons
Cluster/infotainment colors and layouts are different (obvious but worth noting)
Low-profile rear headrests
Center headrest
Center cup holder lid/cover
Red contrast seat stitching (China market only)
"GS" embroidered
floor mats (China market only)
Exterior Technology
Front/rear/side parking sensors (automatic parking)
Power folding side mirrors
Cameras in side mirrors for 360 view
Intellilux headlights
Dynamic welcome lighting sequence in rear
LED brake function
Amber Turn
Rear Fog
Eye-hook for towing (bumper access area)
Rear window wiper (sportback)
Summer tires available (Michelin Pilot Sports for example)
Sedan with normal trunk (China market only)
Interior Technology
Heated/cooled/massaging seats offered in multiple trims (not just GS equivalent)
Heated rear seats
AGR certified seats offered in multiple trims (not just GS equivalent)
8" digital cluster offered in multiple trims (not just GS equivalent)
HUD offered in multiple trims (not just GS equivalent)
Navigation map displayed within cluster (pre 2018.5) (FYI White Automotive and Media Services, WAMS, unlocks these cluster features)
Configurable pocket gauges (WAMS)
Paddle shifters
Speed limiter button on steering wheel
Automatic Stop/Start disable button
Drive mode buttons