As a three-dimensional expansion of automobile functions， flying cars have attracted much attention for alleviating traffic congestion， reshaping travel modes， and developing an efficient and low-carbon transportation system. It is generally accepted that flying cars have more than 70% technological homology with electric vehicles. Based on the analysis of the development history of flying cars， the general configuration and the performance of the typical global flying cars are compared in this paper. Six characteristics of the electrification development are proposed. Combined with the analysis of the homology and difference in electric vehicle technology， key technologies such as the propulsion system， autonomous driving， lightweight， and NVH are analyzed. The paper concludes that the development experience， technology， and supply chain advantages of electric vehicles have provided a good industrial foundation for flying cars. Different from electric vehicles， flying cars should focus on the power battery with higher energy density and higher discharge rate， the motor with higher torque density， low speed， and high torque， and high safety autonomous driving technologies that consider the impact of low-altitude complex meteorological environment， obstacles， and bird collision.
