AI Researcher, Cognitive Technologist Inventor - AI Thinking, Think Chain Innovator - AIOT, XAI, Autonomous Cars, IIOT Founder Fisheyebox Spatial Computing Savant, Transformative Leader, Industry X.0 Practitioner Robot housemaids, Jet packs and flying cars are all promises for the 21st century. Flying cars have the potential to save a lot of time and improve productivity and open the sky corridors to future transportation. The requirements for electric vertical takeoff and landing vehicles are very challenging for the potential battery power sources. The automotive e-vehicle transformation is setting up the platform for urban air mobility. However, people must not be naive in believing that e-vehicle batteries will serve for electric flight.