Having such cars in the city would solve the traffic problem. But why are not selected from the car industry holders? Does the customer not prefer them? Is the marketing that is missing? A good example of transition in the car industry is the massive use of the electric cars which I think that it began with Tesla cars. Tesla cars did the break through for the electric cars from my point of view. There is a need for another break through for using such cars.. or an evolutionary part of the community to start using and search such solutions