Today I saw an article about a Tesla mobility service: Elon Musk teases a new autonomous ‘Tesla Mobility’ service I have an idea about a mobility service in the cities (New York, London, Madrid, ..) using the existing subway infrastructure, and I think it is within Tesla capabilities. The idea is to substitute the trains with small autonomous vehicles with a “googleCar” configuration. The vehicles would be waiting for the occupants in each station and would take them directly to their destination station, eliminating the three main disadvantages of the subway: Need to wait for the train Have to stop in each station Not too comfortable I would also eliminate the disadvantages of a car sharing service: Autonomous vehicles in the streets are more difficult Traffic jams in the surface The vehicles would be electric and charge themselves in the stations. The vehicles would be autonomous in a controlled environment. Autonomous driving in roads in tunnels would be very similar to current Tesla Autopilot. Vehicles would drive themselves to: Occupants destinations stations Redistribute automatically to stations with lower level of occupancy I would like to know what do you think about this idea, and if you can help me to let Elon know it. I know sometimes he read forum members twitts.