Sure, but what is your definition of refinement? If you are so sure that the Kia is an inferior product I am just curious to see what objective measurements are you using or you are just using perception and subjective brand feelings.
I have had no quality problems with my Stinger its been solid no rattlers no nothing, it is engineered fantastically even the speakers were integrated into the chassis to avoid vibration, let alone the monstrous power this V6 gives you.
My local dealer has been very cordial, honest and clean, they have not damaged my car at all, I tell them not to wash the car they don't wash it, I tell them need a early oil change they do it, tell them I want to buy new wiper blades they say we will just replaced them for you just buy the part.
Again please define refinement of a car for you.
Thank you
Also Peter Schreyer, Gregory Guillaume and Albert Biermann where involved in the engineering of the Stinger so please let me know what do you mean that the Lexus IS 250 is leaps and bounds better than the Stinger?
First, I'm not trying to crap on Kia or the Stinger. I was a Stinger owner for over a year and a half, and I had every intention of being an "ambassador" for the Kia brand for years to come. In a time where car makers are abandoning the sedan and/or sportback segment, I loved (and still do love) what Kia is trying to do with the Stinger and I hope they continue to develop it and improve it over the next several years.
This is a Stinger forum, and I know that people take things personally when you start saying critical things about the cars they own and have emotion and finances invested into, so I probably shouldn't even have made my previous post.
I never said that the IS250 was leaps and bounds better than the Stinger, so I can only assume that your post above was more of an emotional response to my perceived negativity toward the Stinger than an actual response to my comparison of Lexus and KIA. I said Lexus's service and proven reliability is leaps and bounds better than Kia.
You may not have had any bad experiences with Kia, and the only real glaring issue I had during my short stint as a Kia owner had to do with the service department that damaged my car the day I bought it. There were some other issues but they were all ultimately fixed with the help of Kia of America.
With that said, if you've ever owned a Lexus (or presumably any other premium/luxury brand), the service is simply much better. Free loaners during repairs and recalls being the first main difference that comes to mind. Sure the argument is that you pay for that service with the premium brand markup, but the Stinger has a premium brand markup (if you go by MSRP). Good luck getting a loaner Stinger if you ever need to give your car to the dealership for a week. You would be lucky to get an Optima at most dealerships.
As far as refinement goes, I can only speak to my experience during the ~7k miles I drove the car in 1.5 years. You said that you haven't had any issues, so it's no surprise that you (and Merlinthemad) can't relate to the frustrations that I (and so many others on this forum) have had with the little things that on their own may not be big deals, but when added together serve to really sour the Stinger ownership and driving experience.
Feeling EVERY rubber seal squeak/tick anytime the chassis flexed when driving over a bump or graded pavement, random interior knocks and creaks, noisy sunroof, blindspots, finnicky tech (phantom blindspot monitor and parking sensor alerts), a constantly surging cruise control, very jerky braking in sport mode, etc..
Further, I don't know many $50k cars where people bought lowering springs to IMPROVE the ride (in pretty much every aspect according to users on this forum) compared to the stock Stinger suspension. Comparable feel and performance, sure, but aftermarket Eibachs being essentially used as a bandaid to fix a poorly tuned/configured factory suspension? If that doesn't scream unrefined to me, I don't know what does.
To me, refinement not only applies to the engine and transmission, it also applies to how well the individual parts and features function when assembled as the final product. Refinement was the best way I could describe it, but there may be a better term. Would saying it felt "cheap" bother you less? Because that wouldn't be too far from the truth, tbh.
In any event, I just think when it comes to this car you either love the hell out it and deal with it's blemishes or you don't. It's like...it's like relationships... 
