Are there any doubts that the bulk of future (at least urban) car usage will be car-on-demand rather than individual ownership? If so, something like Uber has differentiated based on quality or capacity, rather than brand of vehicle. And Apple is very much a brand-focused company. So I'm wondering what the educated guesses are about a future that reconciles these two facets. Are we calling an Apple car to the airport in the future? Are they anticipating a large enough gap between self-driving cars and an increased drift away from car ownership that they get 10-20 years from that, and then migrate to car-as-service?