Hi there! Yes I just purchased a 2019 Stinger Premium AWD as a used car. Only had 4k miles on it so it was barely used but still. Got it for 30k, which is 5-6k less than new was going for in my area. Dealer said it was a short ownership because previous owner got pregnant right after purchasing and needed to upsize. Not sure if I believe that but it has a clean carfax and the savings are worth it. Unfortunately my experience at the dealer was a little less than ideal. Car was missing a fuse box cover, had low tires, a rattle in the dash, and lane keep system wasn't working during the test drive. Luckily it turned out to all be things that were either non-issues or very easy to fix. So, 5 hours after I got to the dealer (that was annoying, but a different issue) I drove away in a 2019 Stinger in the stunning Micro Blue with only 4k miles and saved at least 6k. Oh and it was a certified pre-owned so I have the Kia factory warranty. Here's hoping it holds up for me.
Moral of the story, if you can find a good deal and the car is as expected, I think pre-owned is a great option. The Stinger is so new, there aren't too many busted ones anyway.