The fourth issue of Sustainable Bus Magazine for 2024 delves into the transformation of Europe's public transport landscape, with a specific focus on the UK market and the emergence of hydrogen-powered buses. The cover story features the test drive of the Yutong U18, while technical insights include the Irizar i6S Hydrogen, Mercedes eCitaro K, MAN Lion’s City Elec LE, and a comparison of fuel cell bus models. The magazine showcases MAN's advancements in the e-bus market, the Lion’s City 12 E, and the new eCitaro K from Daimler Buses. The issue also contains in-depth reports on the UK market, including an interview with Zemo Partnership's Tim Griffen and an analysis of the impact of the new UK budget on the industry. Furthermore, the magazine presents a comprehensive overview of zero-emission buses available in Europe today. The issue aims to highlight the progress and innovations in sustainable public transportation, promoting a positive outlook on hydrogen technology and its role in shaping the future of the bus market.