They do in S. Korea. Their system even has a backup battery installed in the trunk. Too bad they strip away features for the N.A. market.Since the Limited has a front and rear camera already it is a shame they don't incorporate a recording capability or at least offer it as a dealer installed option. That eliminates the need for any extra external hardware. Until recently I did not even know it had a front camera. You have to go into reverse first then shift to drive and you can see what is in front of you.
It would also require a lot of additional software, which has likely been removed from the releases. I did find this article which talks about it: Future Hyundai and Kia cars to have built-in video recording systemI wonder if the wiring is there for US vehicles? Dealer could install?