Highway spending increased by 90% in 2021. This is one of many reasons why car traffic is growing faster than population growth.
If what you say is true, and they can fit all the necessary tech into 50kg, or anything under the weight of an average human, then I agree, in efficiency, that (50%+) beats even the best bus scenario (35% at full capacity) according to my calculations. By efficiency, I mean what percentage of carried weight is useful.
Hmm, weight of the podbike is 90kg, so it’s probably closer to 200kg as an autonomous vehicle. It would be awesome if it could beat a bus but that is unlikely.
You could make it lighter but it becomes a question of manufacturing cost (lightweight is costly, like composite) and battery size and how often it drives itself to charging and how many solar / wind you need at the charging station.