The global transformation toward sustainable mobility has made Electric Vehicles (EVs) an important tool for decreasing transport-related emissions. Yet EV adoption rates are not homogeneous and differ across countries, shaped by many economic, political, and infrastructural conditions. This thesis focuses on the factors affecting EV Market Share using a panel dataset consisting of 38 countries over a ten-year period from 2013 until 2023. A fixed-effects regression framework has been chosen in order to control for country-specific heterogeneity and examine the role of income, income inequality, public charging infrastructure, EV-supportive policies, and gasoline prices. The obtained results show that higher income levels and availability of public charging points significantly increase EV adoption, while inequality does not display a direct effect on Market Share.