The objective of the research and development project "All-electric Metro", conducted by the Vienna University of Technology and Siemens AG Austria, was to design a metro car based on the Siemens Inspiro platform with SF 1000 bogies, which operates without a pneumatic system. The research paper also evaluated the scope of the technical modification and possible cost savings. The current pneumatic systems were identified and possible alternatives were either demonstrated or, if in absence of alternatives, the necessary research and development analysed. Several alternatives were evaluated according to technological criteria and the most suitable selected. Based on these, a vehicle concept for an all-electric metro car was designed. A key finding was that the conversion of the current SF 1000 bogie into an all-electric bogie is impossible, because the installation of an all-electric secondary suspension, which does not include a pneumatic suspension, requires a significantly different installation framework. A fundamental redesign of the bogie with consider-able financial costs and risks would be necessary. Therefore a development in two steps was proposed. In the first step the pneumatic secondary suspension system remains in the car and only the supply with pressurised air is adapted. In the second step the adaption into an all-electric metro is realised. The impact of the new concept on assembly and maintenance was also shown, as well as possible additional functions and benefits based on the all-electric concept. A research and development roadmap until the construction of a prototype car was evaluated, while marketing issues were also discussed.