For decades scholars in diverse fields have examined problems in the history of mobility. Their diversity was their strength but also their limitation, as disciplinary boundaries impeded the exchange of ideas that lets scholarship flourish. Since 2003 the International Association for the History of Traffic, Transport and Mobility (T2M) has served as a free-trade zone, fostering a new interdisciplinary vitality in a now-flourishing field. Now, with the publication of its first yearbook, T2M has surveyed these gains in the form of a comprehensive state-of-the-art review of research in the field. Here, twenty-seven scholars in the history of mobility, from sixteen countries and five continents, present synopses of recent research. Besides reviews of research in thirteen countries, contributions also include thematic reviews relating mobility to the environment, automobile fetishism, race, gender, and other transnational themes. All in all, more than sixty scholars within and beyond T2M cooperated in this project, making it a truly collective work.