An energy efficient vehicle is provided. Wheels are disposed on the front and rear sides of the car body. A gasoline engine in the car body is used to drive an electricity generator to produce electric energy transferred to a capacitive battery, and then to a multi-loop disc-type dynamic motor. The multi-loop disc-type dynamic motor drives the car by rotating the wheels through a transmission and a differential. The multi-loop disc-type dynamic motor can produce large torque and horsepower through multiple stator rings disposed on a stator base and multiple permanent magnetic sheets disposed on the multiple annular ribs of a rotor base. Therefore, the electricity can be saved to elevate the endurance of the vehicle, and the vehicle does not need to stop for charging.