World climate change constraints demand urgent and continuous awareness of GHG sources. The mobility sector assistance may come from the carbon intensity decrease over the vehicle life cycle study. For this assessment, three main stages can be specifically analyzed: vehicle production, vehicle driving or usage, and finally, the vehicle recycling carbon footprint. This article compares the vehicle electrification trend regarding regional specificities, environmental conditions, and infrastructural resources. The focus is on personal transportation concerning the passenger fleet. Assuming that vehicle production presents a clear impact correlation with local electricity matrix carbon intensity. In contrast, the vehicle driving footprint varies with the kilometers driven combined with the carbon intensity of the energy source (fuel or electricity). Hence a comprehensive and specific analysis is required to reduce greenhouse gas emissions with optimized solutions for the country specificities. Battery-electric vehicles' have higher energy efficiencies than internal combustion engines. The passenger car fleet electrification reduces the energy demand, representing energy safety for some countries strongly dependent on oil imports. Therefore, the current higher costs of electric vehicles added to the required recharging infrastructure are challenging and impacting factors for this environmental transition. The life cycle simulations of a conventional passenger car compared to its full electrified or hybrid version result, unexpectedly, in up to four times the carbon footprint of a battery electric vehicle than a conventional internal combustion vehicle along its life cycle. This comparison was conducted between the USA, China, Europe, and Brazil. Moreover, countries such as Brazil have some uniqueness that led to conclusions that a complete electrification may increase of CO2 emissions due to technologies associated with biofuels production.