Global EV Comparison: MG MG4 Electric 51 kWh vs BYD Dolphin Boost

Side-by-side comparison of all specifications in metric units (km, kg). To see imperial units (mi, lb), switch website version to USA.
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General Info

Both vehicles are currently in production and can be purchased new. The MG MG4 Electric 51 kWh (2022-…) has a starting price of €34990, compared to the BYD Dolphin Boost (2024-…), which starts at €32990.

The two vehicles share the same body style: Hatchback.

Property MG MG4 Electric 51 kWh BYD Dolphin Boost
Years of Production 2022-… 2024-…
Current Status Produced Produced
Country of Manufacture China, Indonesia China
Body Style Hatchback Hatchback
Market Availability EU EU
Price Europe (New) €34990 €32990
Price Europe (Used) €17900 - Price Europe (Used)
GCC Score 5 5.3

Range and Efficiency

While the MG MG4 Electric 51 kWh (2022-…) offers a longer real-world range and a bigger battery, it is less energy-efficient than the BYD Dolphin Boost (2024-…).

Property MG MG4 Electric 51 kWh BYD Dolphin Boost
Range (WLTP) 350 km 310 km
Range (GCC) 298 km 264 km
Battery Capacity (Nominal) 51 kWh 46 kWh
Battery Capacity (Usable) 50.8 kWh 44.9 kWh
Efficiency per 100 km 17 kWh/100 km 17 kWh/100 km
Efficiency per kWh 5.87 km/kWh 5.88 km/kWh
Range and Efficiency Score 5.8 5.5

Charging

Both vehicles utilize a standard 400-volt architecture.

The MG MG4 Electric 51 kWh (2022-…) offers faster charging speeds at DC stations, reaching up to 87 kW, while the BYD Dolphin Boost (2024-…) maxes out at 65 kW.

The BYD Dolphin Boost (2024-…) features a more powerful on-board charger, supporting a maximum AC charging power of 11 kW, whereas the MG MG4 Electric 51 kWh (2022-…) is limited to 6.6 kW.

Property MG MG4 Electric 51 kWh BYD Dolphin Boost
Max Charging Power (AC) 6.6 kW 11 kW
Max Charging Power (DC) 87 kW 65 kW
Architecture 400 V 400 V
Charge Port CCS Type 2 CCS Type 2
Charging Score 3.8 5.3

Performance

The MG MG4 Electric 51 kWh (2022-…) is rear-wheel drive, while the BYD Dolphin Boost (2024-…) offers a front-wheel drive system.

The BYD Dolphin Boost (2024-…) boasts greater motor power and accelerates faster from 0 to 100 km/h.

Property MG MG4 Electric 51 kWh BYD Dolphin Boost
Drive Type RWD FWD
Motor Type PMSM PMSM
Motor Power (kW) 125 kW 130 kW
Motor Power (hp) 168 hp 174 hp
Motor Torque 250 Nm 260 Nm
0-100 km/h 7.7 s 7.5 s
Top Speed 160 km/h 160 km/h
Performance Score 3.2 3.3

Dimensions

The MG MG4 Electric 51 kWh (2022-…) has a wider body, offering a more shoulder room, while the BYD Dolphin Boost (2024-…) stands taller for a more elevated driving position. Despite these differences, their lengths are nearly identical.

Both models have similar wheelbase lengths.

Property MG MG4 Electric 51 kWh BYD Dolphin Boost
Length 4287 mm 4290 mm
Width (with Mirrors) 2060 mm 2012 mm
Width (w/o Mirrors) 1836 mm 1770 mm
Height 1504 mm 1570 mm
Wheelbase 2705 mm 2700 mm

Cargo and Towing

The MG MG4 Electric 51 kWh (2022-…) features a larger trunk, but the BYD Dolphin Boost (2024-…) offers greater maximum cargo capacity when the rear seats are folded.

Neither car is equipped with a frunk (front trunk).

The MG MG4 Electric 51 kWh (2022-…) has a towing capacity of up to 500 kg, whereas the BYD Dolphin Boost (2024-…) is not officially rated for towing in the EU.

Property MG MG4 Electric 51 kWh BYD Dolphin Boost
Number of Seats 5 5
Curb Weight 1710 kg 1568 kg
Cargo Volume (Trunk) 363 l 345 l
Cargo Volume (Max) 1177 l 1310 l
Cargo Volume (Frunk) - Cargo Volume (Frunk) - Cargo Volume (Frunk)
Towing Capacity 500 kg - Towing Capacity
Cargo and Towing Score 4.5 4.4
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