Did a reverse image search for it.
Getty has it but just says "photo by Getty".
A blog also has it and says "photo courtesy of RAND Corporation".
A search for "RAND corporation self-driving car" led to this report with the image on the cover. Opening the PDF led to this:
Cover image: Advertisement from 1957 for “America’s Independent Electric Light and Power Companies” (art by H. Miller). Text with original: “ELECTRICITY MAY BE THE DRIVER. One day your car may speed along an electric super-highway, its speed and steering automatically controlled by electronic devices embedded in the road. Highways will be made safe—by electricity! No traffic jams…no collisions…no driver fatigue.”