Traditional embedded devices (i.e. not smartphones) tend to use very mature and well understood CPUs. Moreso for things holding life and propery like cars. If a

Traditional embedded devices (i.e. not smartphones) tend to use very mature and well understood CPUs. Moreso for things holding life and propery like cars. If a bug does occur and cause a crash, normally a watchdog timer will reset the CPU quickly enough to avoid unrecoverable problems. They're certainly not pushing the bleeding edge at all like the 3 GHz desktop/laptop processors.