I'm a bit late to the party, but figure I'll toss in my $0.02.
About a month ago, I was in the same exact buying decision, trying to decide between '22-23 GT-Line, GT1. Only difference... I was also considering
G70, since we have both and like them equally. Even though I could've gotten a GT1 at very nearly the same $$$, I ultimately chose a '23 GT-Line.
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The '19 Base model behind it should tell you where I was coming from power-wise. Personally, I have absolutely no problem with the 2.0T. My oldest son drives a '21
G70 6MT 2.0T and we have been having a ball going to AutoX and track event for the past 2 seasons. As I told him... anybody can buy a fast car, but it takes finesse and skill to be a fast driver. The former is a never-ending money pit; the latter is far more satisfying.
A few weeks ago, I was at a
BMW Ultimate Driving Experience event and had the privilege of riding shotgun with a national-level instructor in a BMW 330e. Anybody that thinks 2.0T is slow should try that experience for themselves. That car makes 181hp@3,800 rpm (gas), 107hp (elec); 288hp (comb) and he slingshotted around that AutoX course like it had 500HP. Of course it hasn't. I myself drove the same car on the same course 1/2hr earlier, and I was wayyy slower.
Same thing happened with my Stinger 2.0T. I took my oldest to an AutoX Novice school back in Spring 2022, and an instructor that competes at the regional level drove my car (mostly bone stock at that time) wayyy faster than I could manage now with JB4, full suspension
mods, and TW200 track tires.
Anyhow, back to the '23 Stinger... It's nice that Kia offers the Apex package on the GT-Line for '2023, but unfortunately it doesn't include the LSD (Limited Slip Differential). Not that I have a problem with that, as I retrofitted both Brembos and LSD (Limited Slip Differential) on my '19 Stinger Base, so I could just as easily do the same with the '23. In fact, I already bought an LSD (Limited Slip Differential) from a
G70 6MT on ebay, so the '23 will be so equipped as well. The '23 shocks do feel better damped compared to the '19, so perhaps Kia retuned th damping rates. Doesn't really matter anyway. I'm skipping lowering springs and going to coilovers straight, since our experience in the
G70.
I also like that the Smartstream is the latest gasoline engine architecture that is now powering the rest of the Genesis family. Not only does it have GDI+MPI, it also has a liquid-cooled intercooler, which is very trick and should be more efficient than the air-air intercooler previously used in both 2.0T and
3.3T.
Lastly, as much as we enjoy tracking our cars, they are still first-and-foremost daily drivers that spend 95+% of the miles on public roads, where I have zero interest engaging in street tomfoolery. While I do enjoy carving a nice corner every now and then when no other cars around, vast majority of the time, I'm hypermiling on my daily commute route trying to outdo myself on the MPG race.

For the record, below is my current Personal Best in the 2.5T. I had to stop short of my 25mile commute to get gas, otherwise I probably could've eke out another 1 or 2 mpg higher. Anyhow, ambient temp is finally dropping here off the Gulf Coast, so I'll have to wait till next year to best myself on that one.
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Anyhow, as always... your mileage may vary.