The main challenge of this sort of project is to come up with a concept that's outside the proverbial box, and then sell the concept to public officials high enough in the regime's hierarchy to get them on board and have them sponsor the project to make it happen in the political level.

For such a bus to be able to circulate, traffic codes need to be adjusted, signaling must be tweaked, public roads need to meet stricter requirements, and the public needs to be educated. These are all political challenges.

Building the bus is the easy part.