The thesis focuses on the update of the EUROFusion TIMES Model (ETM) demand-side, with special reference to the Road transport sector. The main target of the work is the forecast of the future European energy mix, considering the possible role of nuclear fusion power plants for electricity production, related to the constantly growing interest on electrification of the vehicle fleet, which appears like the most suitable strategy to reduce GHG emissions from transport (provided that this electricity is produced from low/zero emitting sources). In order to achieve this goal, the first step is the assessment of the present status of the vehicle usage.