Elite implies the manufacturer's personal responsibility for each piece of the product, and individual guarantees. On the box, engine, etc. "Lamborghini" or "Ferrarri" there is always the name and coordinates of the master or assembler, which can theoretically be addressed. This is the component of elitism, which is impossible or meaningless when produced by a 3D printer.
I will answer, if you may, not from a technical point of view, but from a market one. I hope that there will also be an answer explaining the technical possibility or impossibility of such a situation.
Even if the technical possibility of producing modern luxury cars using 3D printers appears, it will not make "elite" generally available. The focus will simply shift in the positioning of luxury cars. Customer value is a very important characteristic, and mass, "print" production will devalue the status part of the formation of this value. As soon as this happens, there will be a marketer or just a smart entrepreneur who will create a truly unique and "elite" car, and most importantly, will position it in such a way that everything that is produced with the help of a 3D printer will be considered consumer goods.
Ie. although, in fact, in the perception of a modern consumer, he will receive elite cars at an affordable price, but in the perception of a future consumer who will really witness this technological breakthrough, he will receive ordinary mass-produced cars and will hardly experience satisfaction of his status need.
So, from a market point of view, if people retain the same passions and motivations, getting publicly available luxury cars is impossible.