You'd have to be really keen to fit one to your model.
The metal panel (behind the plastic bumper) is replaced by the much stronger tow bar frame so this involves removing a LOT of body panels with all their secret fixings. Parking sensors and such to be disconnected.
Then drilling the "chassis" (using the term very loosely) for the actual bar connections.
Finally the wiring. This involves practically dismantling the interior/rear of the car to source the various feeds.
Then re-fitting it all with hopefully not too many broken secret fixings.
I fitted a reversing camera to Mr's i-30 so i've been down this road, it's a nightmare.
You will need the removable tongue type or the ball will have to be removed when not towing, as it obscures the licence plate.
The European i30 conforms to EU Type Approval by fitting to the mounting points installed by the manufacturer.
The i30 has six mounting points with captive nuts already fitted. Line the tow bar to the mounting points, insert the bolts and tighten....bar is fitted! Most makes of towbar have alternative mounting holes to accommodate both the hatch and estate.
As the early model i30s were imported to the EU from Korea and had tow bar mounting points incorporated it seems strange that the Australian versions need drilling of the chassis as they don't have the same T/A mounting points in place ...or do they? Are the permissible tow loads are same?
Electrics do require the side panels in the boot to be removed for access to the harness. The dedicated wiring kit literally plugs into the existing set up with just one wire to a fuse at the right hand fuse box hidden by the door.