This is still only the US though. A big part of the global car market, sure, but it would be interesting to know how it works elsewhere. It doesn't work that way in Europe (at least I don't think there are EU states with the US setup)
There’s a lot of hatred for dealerships, because the sales process is not very enjoyable. But historically the franchise model allowed the manufacturers to extend their available credit to expand across the country. The local knowledge and independence that a local business person had also made (and makes) dealerships more nimble and better able to meet local demands.
Ultimately though, the nature of manufacturing determines almost everything in automotive. For manufacturers to be competitive they have to highly efficient assembly lines, which means a nearly constant output of vehicles per month from a typical plant. Supply is constant, and But demand is seasonal, and responds to various factors, many of them regional, and some of them hyper-regional (a hail storm for instance). Manufacturer’s need to be able to keep vehicles from stockpiling outside of the factory, and they work with dealers to do this through various incentives, loans, and programs.
Dealerships provide a measure of adaptiveness, because each dealer has his or her own lines of credit and capital, relationships with local city councils, charities, and media, and local knowledge of real estate in a way that would be difficult for a vertically integrated system to manage. Successful dealers are treated well, and unsuccessful ones are muscled out if they aren’t doing their job of moving units in their region.
If you dig around on the forums where Tesla bears hang out you can see photos of parking lots full of newly built cars with nowhere to go, and how hard of a time they are having managing a slightly higher rate of production.
as far as i know the setup as it is done in the US does not exist in (most) EU countries.
But let's not forget owning a car in europe is vastly more expensive and also far less needed for a lot of people. (especially those living in large cities with public transportation).
Im in my mid twenties and don't own a car, neither do most of my peers.
The ones who do all buy older, second or third hand vechicles which are easier to maintain and also cheaper. (toyota/volvo for instance). Most people seem to be mostly concerned with the primary function of a car, which is getting someone from A to B. Other functions seem to be less "useful" for most people i know.
Also, driving distances are vastly shorter for a majority of europeans.
Luxury cars seem to be mainly gained by using either a private lease contract or getting one on a company's expanse for bussiness purposes.