The main differences between BYD Tang EV and DM-i in daily use are as follows

Energy supply
EV: It mainly relies on external power charging to obtain energy, and needs to find a suitable charging station for charging.
DM-i: It can replenish energy through refueling and external charging. Refueling is more convenient and does not affect the use when there is no charging condition.
Cruise range

EV: The cruising range depends on the battery capacity and vehicle energy consumption, generally ranging from a few hundred kilometers.
DM-i: Due to the support of the fuel engine, the comprehensive cruising range is usually longer, but the pure electric cruising range is relatively short.
Daily use cost

EV: If you can make full use of the low-cost night charging, the electricity bill is relatively low, and the use cost is usually lower.
DM-i: Although it can also travel a certain distance in pure electricity, the cost of using fuel when the battery is low will be higher than the pure electric mode.
Long-distance travel

EV: Long-distance travel may face the problem of insufficient charging facilities or long charging time, and it is necessary to plan the charging site in advance.
DM-i: It is convenient to refuel for long-distance travel, and there is no range anxiety.
Power performance
EV version: The motor responds quickly and has excellent acceleration performance.
DM-i version: The power output is also relatively strong, but it may be slightly inferior to the EV version.

Maintenance
EV version: There are no engine-related maintenance items, mainly focusing on the inspection and maintenance of the battery, motor and electronic control system.
DM-i version: In addition to the three-electric system, the engine also needs routine maintenance, and there are relatively more maintenance items.
Vehicle weight
EV version: Due to the heavy battery pack, the vehicle’s own weight is relatively large.
DM-i version: The weight is relatively light.
Driving experience
EV version: It is quieter and smoother during driving.
DM-i version: When the engine intervenes in work, there will be certain noise and vibration.