No, to agree that Hyundai has better quality than VW, that was the original argument wasn't it?
For that to happen we need to agree on what elements exactly, and weighted to which proportions, the concept of 'quality' embodies. As you and I seem to differ fundamentally on that, I doubt agreement is a likely outcome.
As mentioned waaaaay back, my impression of the Hyundais on our own introduction to the Vivo left me moderately impressed. They do come with a lot of kit, and superficial quality seems decent enough. However I know, from sitting through boring and long-winded presentations on both manufacturers' models, that European cars as a rule are designed and built to a more exacting standard from better materials. That's not to say that something from Hyundai can't create an impression of quality, and even be very well screwed together. However, extrapolate the underlying design philosophy of each to the extreme, and subject them to abnormal stresses and strains, and the Europeans will hold out better.
Why do you think a GTI simply feels better going around a track than, say, a Tiburon? Because it's more rigid, better balanced and more communicative a drive. That, in my view, is a more pertinent indicator of underlying 'quality' than the ability to hammer around an oval track for 700,000km without blowing a headlight globe.
EDIT
There are always exceptions to the rule - I love Scoobies!