The transition to sustainable transportation has led to the emergence of electric vehicles (EVs) and the exploration of alternative fuels like Hydrotreated Vegetable Oil (HVO) for diesel cars. This study presents a comprehensive comparative analysis of electric cars and diesel cars powered by HVO, focusing on environmental impact, performance, economic aspects, infrastructure, and longevity. Electric cars, with their zero tailpipe emissions, offer a promising solution to reduce urban air pollution and greenhouse gas emissions. However, the environmental footprint of their battery production and electricity sources cannot be overlooked. On the other hand, diesel cars using HVO, a renewable biofuel, have the potential to significantly reduce carbon emissions compared to conventional diesel, while leveraging existing refueling infrastructure. Performance metrics, including acceleration, range, and efficiency, were evaluated for both vehicle types. From an economic perspective, the total cost of ownership, encompassing purchase price, maintenance, and fuel or electricity costs, was assessed. Infrastructure analysis revealed insights into the availability and convenience of charging stations for EVs versus HVO refueling stations. Additionally, the longevity and maintenance requirements of both vehicle types were examined to provide a holistic understanding of their long-term viability. The findings of this study offer valuable insights for policymakers, manufacturers, and consumers in making informed decisions about sustainable transportation options. The results also highlight areas for potential improvement and innovation in both EV and HVO technologies, paving the way for a cleaner and more efficient transportation future.Â