The car will have a stop-go button but no controls, steering wheel or pedals. Pictures of the Google vehicle show it looks like a city car with a “friendly” face, designed to make it seem non-threatening and help people accept self-driving technology.

BMW’s Connected Drive. Perhaps the most commercial of the selection

Mercedes F015 is capable of being used as an autonomous vehicle or piloted by a human.

During an onstage presentation unveiling the vehicle at the 2015 International CES in Las Vegas, Dieter Zetsche, the chairman of Daimler and head of Mercedes-Benz Cars, said the vehicle was geared toward future roads populated with “exclusive cocoons on wheels.”

The capsule-like F015 sports an elongated body that measures 17 feet in length while only 5 feet in height. Central to the body design is a long windshield that morphs into a sunroof as the single pane of glass swoops over the vehicle’s roof.

Large 26-inch wheels are pushed to the far corners of the vehicle to maximize passenger space, Zetsche said. Passengers sit in pedestal seats that automatically rotate 30 degrees when the carriage-style doors are opened.