If all cars do become electric, and therefore become an appliance like a washing machine, I will look forward to when all cars become self-driving.
hate to tell you this, but cars became appliances(and not richmen's toys) when they became affordable, usable, practical and reliable. That was in 1908 with the Model T Ford.
The vast majority of car owners would prefer them to be appliances in the manner of washing machines because then they wouldn't have to maintain them, clean them, or spend any money on them from one year to the next. When was the last time you heard anybody wittering on about how their Acme Aardvark ABC123 Washmatic GTi makes a lovely noise or is such a stylishly sleek looking machine in its custom Glacier Ultra Diamond White finish?