The ADAC sponsored a study at the Technische Universität Darmstadt on the compatibility of E-Fuels with conventional combustion engines. The results showed that fuels like Bio-Sprit, specifically Eco100Pro, can be used without any performance drawbacks or technical risks. In fact, CO2 emissions can see a reduction of up to 92% if renewable energy is predominantly used in the production process. This promising finding suggests that existing vehicles can be easily shifted towards sustainable and eco-friendly alternatives. However, the main obstacle highlighted by ADAC is the high cost associated with these eco-fuels, making mass adoption challenging. Contrastingly, the Potsdam Institute for Climate Impact Research advises prioritizing electrification in transportation and buildings. The switch from fossil fuels to electric technologies is seen as the key step towards achieving climate neutrality. While hydrogen and synthetic fuels have their place in certain sectors like aviation and industrial heat processes, their conversion and combustion come with significant energy losses. The researchers suggest that electric technologies are more efficient for most applications, with hydrogen and synthetic fuels reserved for specific industries where they are indispensable. The study emphasizes that planning should focus on sectors where these fuels are most needed, rather than widespread adoption across all areas. Overall, the research underscores the importance of sustainable mobility solutions and the need for cost reductions to make them more accessible in the future.