The BYD Song DM-i is a plug-in hybrid electric vehicle (PHEV) manufactured by BYD Auto. It is a variant of the BYD Song series, which includes both fully electric and hybrid models. The DM-i in the Song DM-i stands for Dual Mode Intelligent, highlighting its dual-mode powertrain system. The Song DM-i combines a 1.5-liter turbocharged gasoline engine with an electric motor and a lithium iron phosphate battery pack. This setup allows the vehicle to operate in three different modes: pure electric mode, hybrid mode, and gasoline-only mode. In pure electric mode, the vehicle runs solely on electric power, providing zero-emission driving for shorter distances. In hybrid mode, both the gasoline engine and electric motor work together to optimize fuel efficiency and power delivery. In gasoline-only mode, the vehicle operates like a traditional internal combustion engine car. The BYD Song DM-i offers a range of advanced features and technologies. It comes equipped with a regenerative braking system, which helps recharge the battery while decelerating or braking. The vehicle also features a smart energy management system that intelligently controls the power flow between the gasoline engine and electric motor, maximizing efficiency. Overall, the BYD Song DM-i is a versatile and eco-friendly vehicle that combines the benefits of electric and gasoline power. It offers a practical solution for drivers looking for a more sustainable and efficient driving experience.