This paper reconsiders the new mobilities paradigm and its relevance for the understanding of transport systems and behaviour. It argues that the mobilities field will gain from more systematically drawing on conceptual and empirical insights from psychology to complement insights as mostly derived from sociology, geography, innovation studies, anthropology, cultural studies and continental philosophy. Focused on the car as one of the most dominant objects of individual consumption, it examines psychology epistemologies that are different from those that prevail in the mobilities literature. Transport systems shape and are shaped by social and personal identities, fears and anxieties, trauma and phobia; aggression and rebellion; and the search for community and companions. These aspects have been debated in the mobilities literature, but transport psychology investigates the more fundamental motives and conditions underlying the systems, processes and practices that shape transport behaviour. This paper discusses interrelationships and common ground between the mobilities and psychology literatures, and elaborates on the specific contributions made by social, evolutionary and clinical psychology.