OP could be in Europe. German premium cars are a lot cheaper to maintain there (still more than a Toyota though), and somehow seem to have less issues than the US.
In Europe indeed, no idea why American BMWs are so much worse. There is also a huge amount of complaining online about the dealers, that could be part of the problem.
Had a similar feeling driving a rental VW Passat in the US, it felt like they make a special US version. Most notable difference was a very very lazy feeling gearbox.
Funny you mention Passat. I owned one for a few years and it was pretty solid, was surprised esp. hearing all the negative towards VW reliability. But then I rented one in Florida that felt like it was about to rattle itself apart.
And just so I don't sound like a Tesla fanboy or anything, I got a Model S high mileage loaner that also felt like it was about to break apart at any second.
I guess Americans just can't make cars! I hear the Chinese made Model 3's are really solid
Yes I had the same comparison having also rented several VWs in Europe and feeling like it's an entirely different car in the US.
Not sure whether a US market BMW is produced locally. If they are that would explain a lot in terms of US customers complaining about reliability and thinking a model 3 is like a German luxury car while to European customers it feels like a cheap American car. The frame of reference isn't the same.
Edit: So a quick Google shows a US BMW 3 series is produced in Mexico. And apparently has to use at least 50% locally made parts according to Mexican law.
Had a similar feeling driving a rental VW Passat in the US, it felt like they make a special US version. Most notable difference was a very very lazy feeling gearbox.