Why are used cars disappearing?

Why does the transmission often show a fault code and then disappear on its own shortly after?

Why doesn't the used 212 have a diesel engine?

Why doesn't Xubao use the 1.8T engine?

Are cars still using dual-clutch transmissions (DCT) at over 50? Why not switch to an automatic transmission (AT)?

Can the USB port in the car be used just for charging? Why can't it connect to the car's infotainment system?

Why are used cars disappearing?

New cars have dropped in price so much, why are used ones still so expensive?

Why are there grooves on one of the brake discs of a car that's been used for five years?

Why can't the navigation system of the 2018 model be used?

Why is the computing power of the new Zeekr 009 so low? Is it using Mobileye's autonomous driving chip? Why not use the mainstream Nvidia?