Anyone have a guess as to how much less material intensive a dedicated robotaxi might be? Right now ride share cars are the same as ever other automobile. But maybe a robotaxi could be smaller, like the 2 seat Cybercab. So you are saving on the cost of materials, and weight. And if you are just mostly running around town at low speeds, maybe you only need a small 30 kWh battery? Again that saves cost and weight. And if it is mostly in-town driving, your robotaxi might have a much smaller motor than what most consumers would find acceptable if they were buying a car for themselves? Also with the around-the-town-and-not-at-highway speeds, you could get by with less sound insulation (less wind noise), and maybe harder tire rubber compounds that are more efficient (less rolling resistance, but noisier) and have longer wear life?
What other potential savings might be available? You could remove some things, like the outside mirrors, saving slight cost and gaining on aerodynamic efficiency. Removal of the steering wheel, brake / accelerator pedals, inside rear view mirror. Get rid of the instrument cluster display. Get by with a very low cost speaker setup to make announcements only?