The state capital of Baden-Württemberg, Stuttgart, has taken a significant step towards sustainable public transport with the delivery of the first Mercedes eCitaro G fuel cell bus running on pure hydrogen to Stuttgarter Straßenbahnen AG (SSB). The partnership between SSB and Daimler Buses has resulted in the introduction of a new H₂ mode that allows the eCitaro G buses to operate exclusively on hydrogen, eliminating the need for external charging and significantly increasing their operating radius. By 2027, SSB plans to operate emission-free buses in the city center of Stuttgart, with a goal of achieving climate neutrality across the entire bus network by 2035. The eCitaro G fuel cell buses are equipped with advanced features, including a compact fuel cell module, high-voltage battery packs, and hydrogen tanks, enabling them to carry up to 124 passengers comfortably. The buses also boast modern safety technologies, LED lighting, and eco-friendly systems, aligning with the city's focus on sustainability and environmental responsibility. The introduction of these fuel cell buses not only enhances the public transport system in Stuttgart but also underscores the city's commitment to reducing emissions and embracing innovative solutions for urban mobility. The move towards hydrogen-powered buses represents a positive development in the journey towards a greener and more sustainable future for public transportation in Stuttgart.