The Physical Internet (PI) is probably the most ambitious and visionary concept towards efficiency and sustainability in transport logistics. PI proposes a full consolidation of logistics flows from independent shippers using vertical and horizontal collaboration. The objective of this paper is to evaluate where the implementation of the Physical Internet concept stands in the practice of city logistics. From our research, it can be concluded that Hubs, Networks, and Extended Inter-networks are developing sufficiently. Access and adoption, as well as the governance of platforms, still seem to be too complex for big steps on the roadmap.