A recent article in the Journal of Energy Chemistry sheds light on the potential of MS-SOFC (metal-supported solid oxide fuel cells) technology in revolutionizing the automotive sector's energy landscape. Led by researchers from UNICAMP and supported by FAPESP, the study delves into the advantages and challenges of MS-SOFCs, emphasizing their role in decarbonizing mobility. The technology, fueled by ethanol, holds promise in countries like Brazil, the United States, and others with significant biofuel production. The study underscores the high efficiency, durability, and fuel flexibility of MS-SOFCs, presenting them as a practical solution for the energy transition without the limitations of conventional batteries or the high costs associated with hydrogen technologies. Collaborative efforts between research institutions aim to advance MS-SOFC technology and bridge the gap between laboratory innovations and real-world applications. Compared to traditional ethanol and battery-electric cars, MS-SOFC vehicles offer superior energy efficiency, faster refueling times, and practicality in using widely available fuels. The technology's ability to generate electricity from diverse sources like bioethanol, biogas, and green ammonia enhances its appeal for sustainable transportation. Operating on a sustainable cycle, MS-SOFC cars convert ethanol into hydrogen, which powers the electric motor, emitting only water, heat, and minimal CO2. This eco-friendly approach positions MS-SOFCs as a key player in reducing carbon emissions in the automotive industry. Despite not being commercially available yet, MS-SOFC technology showcases great promise, exemplified by Nissan's ethanol electric car prototype, hinting at a greener future for transportation.