I hope it's sarcasm? How about if autonomous cars would be bigger, so from same apartment block people could ride-share to same office downtown? What if those

I hope it's sarcasm? How about if autonomous cars would be bigger, so from same apartment block people could ride-share to same office downtown? What if those cars would be on rails - imagine how simpler the autonomous part would be? Lower friction and fuel costs savings will be a bonus. /s on my part obviously.