I was thinking the same, I'll never forget the huge let down driving my schoolday hero turned out to be, a Ford Sierra RS 500 Cosworth - running 500+ BHP - massive turbo lag, sounded awful, harsh ride, no refinement to speak of, you felt more of a passenger than a driver when the turbo eventually spooled up how they fetch such crazy prices these days beats me.
On the other hand though, one of my favorite hero cars remains after driving a few the e30 M3 slow by modern standards but what a wonderful driving experience, they got them so right.
I'd love an afternoon in an R34, never driven one but had a ride in a few modified ones years back, leagues ahead of the Cosworth Sierra's, and they look fantastic.
The Nissan that left an indelible mark on my mind was the Sunny GTI-R bonkers things that you just don't see any more.
This quote puts one in good perspective.
https://hyperchips.co.uk/forgotten-classics-the-nissan-sunny-gti-r/
Enjoy OP whichever you pick, and to do it in Japan.....
Cars like the Nissan Sunny GTI-R and the Ford Cosworths are what the Golf R wish it could be. Quick cars, but also with character