The paper argues that in the 1940s–1950s the construction of the ‘Brotherhood and Unity’ highway in former Yugoslavia was an important tool for the formation of a trans-ethnic collective socialist Yugoslav identity, based on the idea of equality of all citizens, of all republics and of ‘building a new Man’. Yet in practice, from the 1960s the constructed auto transport infrastructure started to adapt to pragmatic advantages and produced the opposite – differentiation of the Federation’s cores and peripheries, and a growing sense of individualism with the spread of personal automobility. The paper investigates the elements of this shift, being based on the analysis of official reports, secondary literature and national statistics.