[sandworm101]

They aren't really what HN people would consider serious microchips. They certainly aren't CPUs. They are lots of basic little chips doing things like regulating an engine parameter or detecting brake pedal forces. One way forwards in reducing the overall demand for chips, the square-inches of silicon needed in a car, is to abandon the approach of scattering little chips all over the vehicle. Instead they could route all the wiring into a centralized control with a powerful CPU running effectively an OS for the entire vehicle. One chip to rule them all. But that just isn't how cars have evolved. History has incrementally made every system componentized and independent.