I'm sure you'll be pleased with the car!
All 3 cars were fitted with a towbar by Barnsley Towbar Centre. We bought all the cars from a dealer in Barnsley (we live about 40 miles away) because they offered the best deal).
I suspect that many dealers will "farm out" their tow bars as mine did.
I have had removable Swan necked on all three cars. Initially because I thought the rear sensors would cause problems with a fixed bar - since know that's not the case, but in the latest one, as to be fair the other two, when removed there is no sign of a bar ever been fitted. The 13 pin socket just folds away.
My preference for the detachable is based on sore shins! Need I say more.
The current car has a detachable Tow Trust bar fitted, rated at 145kg.
View: https://www.youtube.com/watch?v=_mr0O_tk6tc
I read of the odd issues that are attributed to detachable tow bars but my own take is that these are not simply invented in a garden shed but are carefully designed to do the job they are intended to do. If users can't attach them properly that's not a criticism of the design but more the user! I don't go moaning to a car manufacturer if I forget to depress the clutch and damage the car!
The Tow Trust design has a dedicated place to affix a breakaway cable although I have added a "D" link to make it easier on the knees!
I can't really comment on the lights because the new one has clever turn corners lights and probably different "bulbs" too than my previous model. But I had never considered head lights to be inadequate in fairness.
Just to say that the self levelling works a treat. No sagging at the rear.
We had one issue with the cars that was repaired under warranty. We pay for the service scheme and in fairness they seem to do a good job, albeit rather more expensive than the local dealer. The last car had a slight leak from one of the self levelling thingies at 3 years old. The garage noticed and replaced it for me - cost to them was over £1,000! So some bits are not cheap but you get 5 years warranty.
Best of luck with your car. I am sure you'll be delighted. There are many on this forum, and others, who are strong supporters of the Hyundai and The Kia.
As for the hybrid............. We made a considered decision to ignore it and buy a new diesel car just over one year ago. We know how this performs and it's as clean as it can be I think. Maybe in a few years time something will be around that offers similar benefits but no pollution. I may consider it but will certainly not if the convenience of "re-fueling" is any worse than now. Towing abroad and some days covering long distances is not an activity I intend to undertake if I need to somehow locate a empty electricity supply point and wait for 45 mins or more before being able to continue my journey!
Bring on electric cars but not before facilities are available I say! Mmmmm. Sorry for that!