To be honest over here I haven't heard of engine issues. They actually have great tuning potential on stock internals. 6R and its FWD/AWD siblings were good for 420hp, with all bolt-ons and running w/m on stock turbo, which was great back in the day, but 7R and its siblings brought it to another level; if they were as capable as the 2019+ cars (which I believe so) then we're talking 500hp on stock internals. You could run hybrid turbos on stock internals. 2019+ cars like our Cupra is one example. Just four things, tune, intake, dp and ic and you're already making 420. Or go hybrid turbo and a few more bolt-ons and you're making 500hp, that's savage power for a car that weighs 200kg less than our A45s. Or 100kg less if it's an AWD sibling.I had the impression that the Golf R engine was highly robust. It's obviously not, so the R400 which was being talked about a couple of years ago would have needed a lot of expensive engineering, if it kept the two litre engine.
8R definitely has great tuning potential as well, similar to our Cupra, no question about it. But the R is quite heavy as well (lighter than our A45s but still heavy), it's gonna need at least a stage 2 to beat us in a drag race, launch or roll. And if we get a single tune to 480-490hp which is what the majority of tunes make, they're gonna need a hybrid turbo setup. In other words, the 8R will need to be 2 stages above the A45s.