PHEV (Plug-in Hybrid Electric Vehicle) and MHEV (Mild Hybrid Electric Vehicle) each have their own advantages, and the choice depends on actual needs. PHEV is equipped with a large-capacity battery, supporting pure electric driving for about 50 to 80 kilometers, which is suitable for short-distance commuting and eligible for new energy policy benefits such as tax exemption or road tax reduction. However, it relies on charging facilities, and its purchase cost is usually about 15% to 20% higher than that of MHEV. MHEV adopts a 48V mild hybrid system, requiring no external charging. It assists the fuel engine through energy recovery, which can reduce fuel consumption by 10% to 15%, making it suitable for users who drive long distances or have inconvenient access to charging. Nevertheless, it cannot run on pure electricity and does not enjoy the green license plate benefit. If daily trips are mainly short-distance urban ones and charging conditions are available, PHEV is more economical and environmentally friendly; if frequent long-distance trips are needed or charging facilities are insufficient, the convenience and low maintenance cost of MHEV are more attractive. Both can reduce carbon emissions, and their technical maturity is guaranteed in the local market. It is recommended to comprehensively consider the budget, vehicle usage scenarios and charging convenience.