I love UTG. I think he's bang on.
To the OP, this is a huge question deserving of a very thick book to explore it. But since I'm not an author and can't write that book, I'll try to distill what I'm seeing:
1) The pressure for profitability at large automakers has caused them to push leases and financing. You and I think the the market is about the cars. But for the OEMs, the cars are only made so that they can sell leases and loans. In other words, they are in the business of manufacturing collateral. We know this is the case because dealers always want to know whether you intend to finance or not, so they don't give you too good of a price without the compensatory finance profit.
From
here
Old data, but is the car market meaningfully different now? 90% of all new car sales are leases and financing.
2) Building a quality car has a poor ROI. In other words, engineered obsolescence is still a thing.
3) The government is aiding and abetting the OEMs by always adding new mandates that a simply built, affordable car can never meet. It's quite possible to make
a supremely affordable basic vehicle. But it's not legal to sell in the USA. Do you as a consumer want a simple, no-frills vehicle? It's not just that the OEMs don't want to make one. It's that it's ILLEGAL for them to try to sell you one. Cash for Clunkers was a disaster, and any economist who believes it's somehow a net benefit to turn a perfectly good machine into one that doesn't work needs to go back to middle school and learn what the word "economy" means.
4) Carmakers are prioritizing short term over long term. OEMs are squeezing out smaller dealerships that spent decades building relationships and have sold cars to 2 or 3 generations. No, the OEMs would much rather give a vehicle to a Lithia type of mega-chain that's all about VOLUME VOLUME VOLUME. Just sell. The small dealers can't compete with large ones, and the large ones make more money for the OEMs.
Most egregious was the OEM response to COVID. When the supply shortage drive up prices on dealer lots, greedy dealerships made hay while the covid sun was shining. The OEMs resented all that profit going to dealers instead of themselves, so they got in on the act and cranked up prices to the dealerships. (FORD was especially bad about this). In a market where just-in-time delivery is the norm, this kind of disruption takes forever to clear.
Think of it this way-- how bad is the pileup on the interstate when there are cars bumper to bumper at 90mph vs having lots of space between vehicles at slower speeds? The car market during COVID was basically a 50 car pileup from going bumper to bumper much too fast. And it's fun and exciting until someone gets cut off and the ripple takes a LONG time to dissipate.
I don't think the car market will heal from Covid until closer to 2028.
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Personally, I intend to buy only used cars and only ones that have been in production for several years essentially unchanged. Buying older and well-used means I get the chance to see exactly what issue particular vehicles have (and they all have something) and figure out what shortcomings I can manage and live with.
On my old ram, it was VP44 injection pumps and lift pumps as the known problem. On my van, it turned out to be PCV and VCM issues. On my IS250 it was GDI carboning. On my GX460, it's cooling system problems and sometimes transmission failure. On my Accord, it's fuel dilution and head gasket problems.
Forewarned is forearmed.