I ended up going with an 18 GT2 in late April/early May of 2021, I sealed the deal literally a day before the prices really started to skyrocket. From what I have read on here, the 19 and 20 model years seem to have the least overall issues, but every car will have its issues no matter what. I had inquired on 11 other GT2's that had sold from underneath me before I was able to lock in one, as dealers at the time literally could not keep them on the lot. for example, I watched blue 18 GT2 with like 15k Miles be posted as I refreshed one of the car searching website pages, called the dealer 15 minutes later and it already had a hold payment on it. The one I ended up buying was 300 Miles away from me in NJ (I live in NH) and the only reason that I was able to get it was because I had called about a different 18 GT2 at the same dealer, that ended up being sold, and the salesmen mentioned that he had quite literally JUST finished taking one in from a 3 year lease that had ended, and the person got into a 21 GT2. He said that he could not even give me pictures of it because it went straight to detailing. (Which it turns out, it needed BADDLY, and then some, but that's another story)
Ended up flying down and driving it home after spending just under 35k for a CPO, Red AWD GT2 with 23k miles on it.
I LOVE my stinger even with all its faults (Which could be a decently long list if I really wanted to nitpick, but half of them are from the person who originally had the lease, so not really the cars fault)
at the end of the day, The WORST thing about these cars is how hit or miss the dealers are. you either have a really, really good service department like my local dealer does, who will literally warranty anything you ask without asking any questions, or you will get a dealer that will try and Nickle and dime you on EVERYTHING, like the scumbag dealer I bought it from in NJ. (STAY AWAY from Fette Infiniti/kia/whatever, for anyone reading this) There is really no in-between.