My eMMC made it to about 120000km, mileage where my previous Audi and BMW clunked out. One with a transmission problem and leaking oil and coolant, and the other with a faulty sensor cabling which caused the S54 engine to stall and flood the exhaust with unburned fuel, then setting it all on fire and burning out the inside.Aside from English car companies, I don't think the general public expects the car's electronics to last a shorter time than the wear components like transmission, motors, battery, etc.
I'm at 148000km now.
I just burned through my second SD card in less than a year in a Raspberry Pi, and I suspect the SD card in my dash cam is also dying.And if you look at anything else the public touches with similar flash memory, the expected lifespan is going to be like 20 years. The issue with Tesla was excessive writes on a small drive. If you want more life, you use a larger drive so it can wear level across more cells.