In some other countries the new car sales system is a little different with more consumers wanting to custom order the car they want, then wait for it to be built. In the US, many mainstream brands won't even take custom orders anymore.
They sat and sat. I made it my personal goal to sell them because I felt bad. I would present them while walking past them no matter what car you came for. I eventually sold them all, even though there were 6 other salespeople working there. I was top 1% in the country so it wasn't a skill issue.
Tldr; manufacturers have been tracking 'average days to sale' for decades. They saw the trends even when the cars were in stock. They took way longer to sell, thus they are gone.
I'm sure its more complicated in practice but I imagine that's the core issue.
They would and I'm sure they produce just as many as they can reliably sell.
I always end up with a manual as they are cheaper (presumably) due to less demand. Hell, my current car they strait-up lied that it was an automatic on Carvana and when it showed up I was, like, whatever. Wasn't really worth the effort to go through whatever Kafkaesque dispute resolution system they crafted and I needed a car so now I have one of those elusive 5-speeds.