There will still be a bit more waiting, who knows if until next October 31st, to be certain of how the United Kingdom will leave the European Union (EU). Only then there will be enough information enabling us to analyze what real effects Brexit will have. At the moment, announcements related to future tariff policies in case of a no deal situation, together with the analysis of the current commercial patterns between Spain and the United Kingdom, allow us to identify the automotive sector as one of the potentially most affected. However, the effects are not homogeneous throughout the Spanish Regions. Thus, the production and, therefore, the employment level of the automotive sector in Aragon, Navarra and Castilla y Leon show a greater degree of exposure to the British market than other regions.