Just chiming in to point out the numbers themselves (my only alternatives on that list would have been the GT4 RS or the best sexposed shifter Lotus made) - in the US, Florida at least, minus alpine and audi tt (no one cares for these, and if they do, even if 1k bhp mod sees them trading eventually - sad, as plenty saw the rally potential the gen 1 had back in it's day), this list pretty much makes up 2/3rds of a local track day (of course lightened 911's, hacked miatas, 3" atw subarus, corvettes/camaros, and Hondas/BMW's on fart mode make up the rest). It isn't a mystery (real) sports cars are thinning out from status symbols/universal pleasures to a nerdy niche thing to have, but it does call to attention how little the car-crazy pandemic era saw in new sales, and now with shortages nearly everyone saw coming when China realized it didn't have to make everyone's everything anymore? Seems to me the real driver's favorite spot will now be the used car lots, given the new cars, no matter how good, will likely only be bought (and rationally afforded) by collectors and hustlers, which isn't doing wonders for a product's image anymore.
Syd Mead made some very interesting illustrations, two contrasting ones specifically: a high tech lockheed martin fighter jet factory with infinite vantage (like an amazon warehouse), and a chrome bullet (usually a Cadillac concept in black) on a pedestal with alien "action figures" pretty much ignoring the frame's central focus. Given the world will start to have to roll up it's sleeves to build it's own products lest we globalize under a sort of eRMB and crown a New World Emperor, the sheer scale of a these near future's giga-factories just won't have relevance for micro-market sports car product, maybe taken on by a few dudes with leftover Kuka arms and an autoclave in a rented warehouse, rafters lined with today's oxidizing lumps of ICE. What would the price have to be, then? As your favorite brand prints out perfect people movers (maybe subscription plans instead of car ownership) to recoup their trillion dollar bailout factories, how long do you think these 2020 models will last until fuel price and availability are the least of the issues? The "silver bullet" halo on a pedestal comes to mind: it won't be a showcase of the EV powertrain every subscribed mover has, but a 1969 Stradale in 10/10 condition. A memory, like walking through a museum.
Occurs to me when asking a book fanatic in the age of the internet: sure Michelangelo's diary and JK Rowling's manuscript are behind glass somewhere, but you're spoiled for choice for 99% of books at bargain prices given the challenges to preserve them for XXX years. I look forward when piles of these 2020 models (except, what, the concept and prototypes sitting somewhere? W/e) go for change, frankensteining a runner from several for a fraction of the likely cost of a couple of passionate dudes in a warehouse's "2035+" sports car. All the 911's/718's and F types and C8's to toss about nature-recovered B roads, sharing the surprise of occasional traffic with "the unplugged", just leave it where it runs out of gas and APP an autonomous ride back home.
Sales volume used to be a good thing, but it seems the simple rarity of the 4c will be it's saving ironic twist of fate, maybe becoming like a gutenberg bible - plentiful to be a quirky, accessible collectible, but rare and curvy enough to be conversational, since, no one will be left to remember or remotely care how the anyone felt about the crowd-pleasing 911, a car that will melt into all these other "old crap" items many of today's children will be eager to toss out (if they have any value at all) so the garage rooms can be converted for something useful. Don't forget: 300hp used to be eye watering 35 years ago, now it's the standard teenager's first car's wheel output with a descent insurance rate. That GT3 RS might give you the feelies now but it won't be long until that thrill is gone (and evolved or at least dead).