I would direct you to the numerous things that _are_ standard on automobiles. For example, CAN bus[1] which is used in almost every single car you'll encounter

I would direct you to the numerous things that _are_ standard on automobiles. For example, CAN bus[1] which is used in almost every single car you'll encounter these days and is what allows their modern electronics to communicate with each other. The auto industry is fully capable of standardizing on something when it's mutually beneficial for them to do so. 1: https://en.wikipedia.org/wiki/CAN_bus https://en.wikipedia.org/wiki/CAN_bus