The mass adoption of the car changed cities by creating suburbs. The mass adoption of the autonomous auto may extend the influence. Autonomous vehicles can operate at higher speeds when they travel in fleets. Commute speeds could rise to 150mph while also allowing the passenger to spend time doing something else. Sprawl may sprawl even more. With such high speeds, effortless travel, travel on demand, and possibly low costs, local buses, trains, and airplanes may succumb to the greater competition. They, too, may become autonomous, which is yet another layer to the story for later.