Hi all. It's interesting to come across posts from you guys concerning pros and cons of Mk8 v Mk8.5,so I thought I'd offer some observations.
I have a 2024 Mk8 GTI. It was an ex-demo car, 2 months old at purchase, and (luckily) I was unaware of the problems earlier cars had regarding the infotainment system and steering wheel haptic buttons - curing of which seem to be the main "pros" for the 8.5. Happily, during my year of running my Mk8, I have had absolutely no problems whatsoever with the software - possibly, according to a very knowledgeable contact at my local VAG dealership, my car has always had the latest software version (currently 1985). I guess I have been lucky, because I think the car is a pleasure to own and drive (I'm 74,and have had almost every generation of GTI except the MK4 but including the Mk1 Campaign).
I will no doubt eventually find myself in the 8.5, but I agree fully with others regarding the new infotainment screen; it's just too big and is not integrated as well as the Mk8 screen. It looks OK in a Tiguan, but not in a Golf imho. With GTI's now, it's hard to keep under the "luxury vehicle" tax robbery, but I do that already so only a bit of pain there. Also, I'm not keen on the GTI badges on the 8.5 being stuck on the doors below the side mirrors - nothing like as good looking as the Mk8 version. And to me the button replacement on the steering wheel may NOT be the instant cure for those problems; my learned friend told me the problem was not the buttons, but the steering wheel itself - which is the same!
Little things, but I find it hard to believe the Mk8.5 is such a massive stride in front of the Mk8.