I read somewhere that since today cars are made with computer aided design, and parts can have their usage simulated for cheap, manufacturers make their cars to

I read somewhere that since today cars are made with computer aided design, and parts can have their usage simulated for cheap, manufacturers make their cars to last just as long as necessary - and the average car owner keeps their car for 6 years (!!) before changing. So they get away with putting faulty parts in the cars because they are able to make them last juuust long enough for the original owner to be satisfied and them be a piece of doodoo on the used market. It's also touted as "less wasteful" since they treat the 6 year ownership as something enforced by the consumers (i.e. even if the cars lasted longer they wouldn't kee them longer than 6 years), it wouldn't make sense to make the cars to last longer. Like if we were building houses to last for 500 years instead of just 100, it'd be wasteful (?)...I guess?