For one horrendous VW at 5-8 years old, there'll be 10 good ones, you don't hear many people broadcssting their glee that their 9 year old Golf has just sailed through its latest MOT. My dad usually keeps his for 6 years/120k miles, and hasn't had to pay for anything major out of warranty yet. I've never kept a new VW (i'm on my 9th) out of warranty to know what might go, but worst I have had is a new turbo on a 2003 Polo 1.9TDI and another Turbo on my R. Never had a fault that has left the car immobilised at the roadside.
There are a fair few exceptions for that 7 year warranty, my colleague has a 6 year old Kia Sportage and the electric sunroof jammed open dufing a torrential downpour. They fixed it but would nit do anything about the incidental soaking the interior got. One of many things wrong with that car. Residuals on the Sportage are reasonable though.
No innovation in a Kia or a Hyundai, most tech is a generation behind the big playwrs like VAG, Ford, GM etc. They just copy old tech as soon as they can -minimising development costs.
I wouldn't have one right now.