I think the key thing here is you own a 2015 Forte and you have limited experience with the Stinger to make any judgements which are mostly opinions in things such as design and feel.As a current owner of a sportish 2015 KIA Forte Turbo, based off my limited exposure and experience with the Stinger, below are the following reasons why I am leaning towards the Q50. Don't get me wrong, the Stinger is a good car and a fresh breathe of air. However, as I tend to keep my cars forever, therefore I have a very stringent selection criteria and a very particular eye for vehicles.
I think the key thing here is you own a 2015 Forte and you have limited experience with the Stinger to make any judgements which are mostly opinions in things such as design and feel.
Primary Considerations,
*Interior Design (I'm not a fan of pop up displays and more importantly the stinger lacks a premium design. It just doesn't look plush, whereas the Q50 feels like you are cocooned in wrap-around luxury. The Stinger interior feels extremely cold and sterile by comparison)
This is your opinion, I feel the Stinger interior is better looking than the Q50. I am a fan of the Pop up display.
*Interior Quality (No comparison here - The Q50 interior is typical Japanese luxury which means high quality surfaces and a very comfortable and plush cabin that will age well and hold up incredibly well over time, in 10yrs time the Q50 interior will still look and feel nice, I can assure everyone here the same cannot be said for the Stinger)
I can assure you as a previous owner of a 2008 G35 which I bought new and sold a few months back that it had its fair share of abnormal wear especially the plastic parts that pealed like for example in the steering wheel. The dealer replaced it several times, only until the 2nd replacement were Infiniti was able to fix the defect. The Stinger is a new platform and on a completely different level as for an Ex. a 2015 Forte, I have no clue how you can assure us of such a thing especially 10yrs from now.
* Paint Quality (Stinger's paint job looks dull even in the showroom, and all the premature wear and tear the owners are experiencing with the paint reaffirms this view. There was a red stinger in the showroom and It just didn't gloss, sparkle and pop out like the way it should with a car of this class. Instead the paint gave the Stinger a very dull "plastic" look)
Paint quality issues on new cars is nothing new, the Stinger got so much attention because it was being heavily marketed and this issue was naturally brought into light. At least Kia did the right thing and immediately rectified the issues.
* Longevity (The Infiniti is a tried and proven formulae and the Japanese produce cars with the best drivetrains, engine and overall longevity and they're generally easy to work on)
This is nothing new, but that doesn't mean the new Korean cars are not good enough especially with the recent quality ratings they have been above average and inline with most of the Japanese brands. Japanese cars didn't start reliable from day one, they improved overtime, so has Kia and Hyundai who have improved extremely quickly.
*Age (The Q50 will age more gracefully inside and out than the Stinger)
How the hell do you know that? The Stinger design is very unique, more unique than the Q50 at least and has been awarded for that.
Below are my secondary considerations,
*Compromise (I have driven plenty of cars, and every time I compare the Camry/Accord to Optima/Sonata, or Forte/Elantra to Corolla/Civic the former brands always drive better, I'm talking about power delivery, overall road holdings and balance. I clearly feel with Koreans - the overall ride and handling are always too compromised, either it's too hard and sporty or too floaty. There is no balance, this may impress the reviewers who spend 2 hours with the car, but for someone who will be living with the cars for years to come, it's not good. It's the same with power, the Koreans have a tendancy to overrate their power and the delivery of power is not smooth like the way Japanese vehicles - i.e transmission, throttle calibration, shift points, power management etc etc)
The Stinger has definitely been underrated, and again we are comparing economy cars to the Stinger which has been purposely built to change the Kia mindset with people.
I've driven the Stinger and having owned the Kia, to me the products look very good from the surface, but once owning them do you notice their short comings. For simplicity sake, they're not as well designed, engineered and optimised as the main Japanese brands.
This is your opinion, I feel the Stinger interior is better looking than the Q50. I am a fan of the Pop up display.
As humans, we like things in symmetrical designs, and the Infiniti interior is flush and symmetrically without any productrifng pieces. To me this is more luxurious.
I can assure you as a previous owner of a 2008 G35 which I bought new and sold a few months back that it had its fair share of abnormal wear especially the plastic parts that pealed like for example in the steering wheel. The dealer replaced it several times, only until the 2nd replacement were Infiniti was able to fix the defect. The Stinger is a new platform and on a completely different level as for an Ex. a 2015 Forte, I have no clue how you can assure us of such a thing especially 10yrs from now.
Virtually every Kia/Hyundai in the use market I've observed their interiors has worn out so much more than the equivalent mainstream Japanese brand vehicle
The Q50 interior is of much higher quality than the Stinger, no questions asked, not only that, but it's also more plush with higher quality materials used and the overall environment is more comfortable.
Paint quality issues on new cars is nothing new, the Stinger got so much attention because it was being heavily marketed and this issue was naturally brought into light. At least Kia did the right thing and immediately rectified the issues
It doesn't take much to see the amount of stone chip, cracking and other premature paint related issues the Stinger has succumbed to. Even without all these issues, I was not impressed by the paint quality of the Stinger in the showroom. AS mentioned the paint was dull and made the car look very plastic like.
As a matter of fact, even my Kia has a stone chips on its bonnet, and it's by far the newest car in the family, I was shocked when I saw the stone chips. Again - This would not be a problem if Kia used higher quality paint or paint procedure?
This is nothing new, but that doesn't mean the new Korean cars are not good enough especially with the recent quality ratings they have been above average and inline with most of the Japanese brands. Japanese cars didn't start reliable from day one, they improved overtime, so has Kia and Hyundai who have improved extremely quickly.
There is a big difference between "perceived quality" and actual quality/longevity etc. As mentioned Kia's look very nice on the surface, but they have many short comings that can only be experienced after ownership.
How the hell do you know that? The Stinger design is very unique, more unique than the Q50 at least and has been awarded for that.
Show me one Hyundai/Kia product that has aged well? There are none. All of them look okay when relased, but to me they age very quickly. Remember the Genesis Coupe aka G37 killer? Look at it today. Then you have the Camry killer aka Sonata (swoopy design) aged terrible and was a horrible car to begin with and so on.
Due to it's more soft and elegant lines, the Q50 will stand the test of time.
The Stinger is a busy and tacky design that will age quickly.
The Stinger has definitely been underrated, and again we are comparing economy cars to the Stinger which has been purposely built to change the Kia mindset with people.
The Q50 engine is derived of the GTR, which is a better design than the Kia. Besides Nissan has been making world class engines for decades. It should come as no surprise there.
Look at photos of the Q50 V6 engine and the Stinger V6 engine - notice how much over engineered the Q50 engine is.