The interior view of a Tesla Motors Inc. Model S P90D, a model with some autopilot features, is seen during an exhibition featuring several self-driving cars outside of the Dirksen Senate Office Building in Washington, D.C., U.S., on Tuesday, March 15, 2016. Advocates of self-driving cars say the vehicles may revolutionize U.S. transportation enough so that the government can spend less money on roads, parking garages and public transportation systems. Photographer: Drew Angerer/Bloomberg via Getty Images
