The research in question intends to investigate the sector of RoPax, or rather the ships destined to the mixed transportation of passengers and vehicles equipped with wheels. Moreover, today considered among the most exciting carriers in the field of Transportation Design thanks to the positive effects their use has highlighted in the area of trade and territorial cohesion. The ferry has spread in Europe since the second half of the twentieth century, an era characterized by a relentless post-war economic recovery that favored the development of trade routes and shipbuilding. The ferry is the direct extension of road and rail networks over water in the absence of land infrastructure. It is no coincidence that it derives from the “landing ship tank,” the ships built for amphibious operations that allowed soldiers and vehicles to land on the beach, from which it inherited its versatility and practicality as values of identity that distinguish the spirit of the journey. The study aims to bring out the most significant transformations inherent to the architectural form of the ship, through the analysis and comparison of selected unit drawings based on collective criteria, such as the type of cargo, the geographical area of service, etc. What matters most is reconstructing the evolution of the layout to understand the motivations that have guided the design choices to date. Among the many variables of a technical and stylistic nature, ferry design is extremely influenced by the social transformations and lifestyles of passengers. Recently, the use of the ferry has recorded a surge that has prompted shipping companies to increase the quality of services and entertainment onboard. Therefore, navigating on a ferry whose meaning has changed from a “spartan” journey to a comfortable one, almost as a cruise ship. The comparison between engineering and architecture has become more relevant than ever for the construction of good ships. Thus, the next challenges will be dictated by sustainable innovation and the digital revolution, opening the door to new scenarios in the shipbuilding industry, which will again change the RoPax layout.