it i cars with that cult status/ look good/ go good/ rare that become classics
ive wanted a 240z since i got interestd in cars, something about the looks, and the fact that they go alright (yet to experience this myself so far)
i dont think non gtr skylines will become one, (look at the current market for old skylines) if you want one you do it right and get a GTR
i think cars like the ae86's are already becoming one, especially the panda turenos. people paying 15g for a stock 20 year old corolla has to be a sign that there getting there (takumi tax anyone)
i think the silvia series might be one, either the 13 or 15. light FR turbo, ease of modification, and big in the drifting scene. the 15 might be one even if drifting dies out, because it was the last of the basic turbo rwd cars pretty much
like all japanese cars, like the 240. there not overly rare, but over time they slowly get less and less. there is somthing abot those cars that were kinda pockets of the era wich you cant get the same experience from now with moden cars