Earlier quoted context omitted.
They didn't last longer. https://auto.howstuffworks.com/under-the-hood/diagnosing-car...
Well, they do (present tense) last longer in the sense that they’re still around and working, which of course doesn’t mean newer cars are worse. It’s a bit like saying someone who’s 70 lives longer than someone who’s 7. I think newer cars seem to be more reliable but older cars probably lasted longer than you think, it’s just that your view is skewed due to the market you’re used to (reading your link, while a millio…
Especially the 70s US cars and somewhat later were complete shit and lead to the meteoric rise of Japanese cars in the US. Almost nothing US built those days got close to 100k miles without massive amounts of rebuilding.