It generates no emissions while running, is whisper-quiet and conserves resources: the new Citaro FuelCELL-Hybrid bus from Mercedes-Benz opens up a whole new era in drive technology for urban buses. The newcomer had its world premiere in June 2009 at the UITP Congress (the World Congress of the Inter¬national Association of Public Transport) in Vienna and could be seen in action for the first time on the occasion of the final conference of the HyFLEET:CUTE project in Hamburg. The advent of the Citaro FuelCELL-Hybrid bus means that the future really has arrived: the launch of the prototype will shortly be followed by small series production while next year will see the start of a large-scale test of the Citaro FuelCELL-Hybrid bus on the basis of ten customer vehicles in service in Hamburg. The objective is for further in-service testing in customer fleets to be conducted at European level.