Let's talk about what needs to be improved to help KIA makes a better car for us
I have several things so far:
1. Most irritating thing is a driver headrest position...it makes you feel constant contact with your head...and to avoid that I put my seat with more back angle...however I prefer to be in straight position as I used to on my Optima.
2. Of course cooling passenger seat is a must for that level...
3. Small thing - digital speed duplicated in km/h...Why do I need that in US?
Even if they want to do that by default in case you travel to Canada and back...give me an advanced option to changed it to mph (as 90% percent of USA's cars never leave US...and rest of 10% could be smart enough to switch main speedometer to km/h instead of looking at small one)...I hope they fix it with next software update.
4. SCC is a great thing...before I used it only on highway...now I'm using it in traffic also...so much relief on your legs

... So the issue that car continue to move after full stop only if you stopped for less than 3 sec...sometimes it's not enough. I hope they would add option to changed it let's say to 10, 15 sec (as they did with turn signal where 3 times is default and the only option on Optima but on Cadenza you can chose 5 and 7...5 is the best for me as I like to inform other drivers for 2 sec before I make actual maneuver). Also if you can use SCC to full stop...then allow to initiate it at any speed

even 5 mph...why not...especially when you stuck in traffic suddenly and moving very slow...because you can increase speed limit of SCC to 75 mph even when you move 5 mph.
5. Last minor thing for now

. When you go back it's automatically lower rear window sunshade...I understand it improves visibility...but in most cases you look at backup camera where things are much more clear

...please add an option to turn it off...even leaving existing behavior as a default one.