I also read the C&D "full panic stop" article. I never experienced that in my 1.5 years of ownership.
So long as you can look pass the badge (putting Kia and luxury in the same sentence), the K900 is a great buy new compared to other cars (see Alex on Auto for K900 on Youtube; towards the end he described how a comparably equipped BMW 7, MB S-class, Audi etc will cost -- in all cases all $20k-$40k more). Compared to Euro-makes, the K900 is at least if not way more reliable; on top of that you've got a killer warranty.
Saving the best for last, since Kia is not known to hold value like Toyota or Lexus, buy your K900 CPO. They list for 60% of retail. Even loaded MY2015 or 2016 barely top $40k; which makes for a great, great buy.
I've mine and commute 50 miles daily, can't be happier.
Yes, make sure you get one w/ the VIP package. Other tell-tale signs of VIP is the dashboard (it has to be full LCD), or look a the set of 4-buttons to the left of steering wheel. If you see HUD, then you've VIP. If there are only 3 buttons in that 4-button design, then no VIP... See attached pic.