High population growth has an impact on various aspects of life, especially traffic congestion. Traffic congestion causing unproductivity, waste of energy, increased levels of stress and health problem. According to BAPPENAS records, in 2017 Jabodetabek suffered losses of up to Rp 100 trillion, while in Jakarta Rp. 67.5 trillion. Many solutions to overcome traffic congestion have been offered from widening roads, improving public transportation system and information system-based traffic regulation. However, traffic congestion is still an unsolved problem. Imagine there is a car that can operate on sky as well with the size of a car. But the next problem is how to maximize the limited space of vehicle as fuel storage so that it can travel a long distance. Without increasing size and weight to the vehicle, efficiency can be achieved by reducing drag. Designing a wheel retraction system can reduce parasite drag up to 24%. The result of this design is a hydraulic pump with minimum pressure of 11.191 bar and flow rate of 0.136 lpm.