This works great in a software dominated world, or in a world where Moore's law (or something like it) makes the device (though useful) obsolete. However, cars fit in a category that people consider to be a durable good. For decades, now, the expectation is that the car does not become landfill material until long after 10 years of use. If basic functionality is either a) unobtainable; or b) ridiculously pricey before those 10 years are up -- you've just lost a customer. For all their GPS and voice-commands, the Teslas, at root, remain a car. Buyers still expect that the point-A-to-point-B functionality can safely be maintained during the typical lifespan of a car -- and not that of an iPhone.