An energy-saving vehicle including a housing, a pair of front wheels, a pair of rear wheels, and a steering wheel. The housing includes an outer portion, an inner portion, an air-flow channel, at least a first air inlet, and at least an air outlet. The air-flow channel is disposed between the outer portion and the inner portion of the housing. The first air inlet is disposed in the front of the vehicle. The air outlet is disposed at the back of the vehicle. The first air inlet and the air outlet are connected to the air-flow channel. The front wheels and the rear wheels are driven by a power unit. The length of the air-flow channel is no less than that of the upper portion of the housing. The vehicle consumes less energy and travels more stably compared to conventional vehicles.