Well, yes, that's the main reason - it's cheaper. There are other reasons of course - planned obsolesence is a big one. Why would they want cars to work after

Well, yes, that's the main reason - it's cheaper. There are other reasons of course - planned obsolesence is a big one. Why would they want cars to work after the primary owner is done with it? With software-everything they can lock the car to the first 3 or 4 owners, and then remotely kill it. It doesn't even have to be actively disabled, just stop providing the replacement head unit as a part because "we don't have that software anymore".