Global EV Comparison: BMW i4 M50 vs Mercedes B-Class 250e

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

Since both vehicles have been discontinued, they are now only available on the used car market. You can get the BMW i4 M50 (2021-2024) for as low as €47700, while the Mercedes B 250e (2014-2017) begins at €11990.

The BMW i4 M50 (2021-2024) is a Liftback, whereas the Mercedes B 250e (2014-2017) is a Hatchback.

Property BMW i4 M50 Mercedes B-Class 250e
Years of Production 2021-2024 2014-2017
Current Status Discontinued Discontinued
Country of Manufacture Germany Germany, Hungary
Body Style Liftback Hatchback
Market Availability EU, USA EU, USA
Price Europe (Used) €47700 €11990
GCC Score 6.5 4.6

Range and Efficiency

With identical energy efficiency, BMW i4 M50 (2021-2024) outpaces Mercedes B 250e (2014-2017) in real-world range thanks to its bigger battery.

Property BMW i4 M50 Mercedes B-Class 250e
Range (EPA) 435 km 140 km
Range (WLTP) 519 km - Range (WLTP)
Range (GCC) 409 km 142 km
Battery Capacity (Nominal) 83.9 kWh 31 kWh
Battery Capacity (Usable) 80.7 kWh 28 kWh
Efficiency per 100 km 19.7 kWh/100 km 19.7 kWh/100 km
Efficiency per kWh 5.07 km/kWh 5.07 km/kWh
Range and Efficiency Score 6.4 4

Charging

Both vehicles utilize a standard 400-volt architecture.

The Mercedes B 250e (2014-2017) has no DC fast charging capability, whereas the BMW i4 M50 (2021-2024) can charge at up to 207 kW.

The BMW i4 M50 (2021-2024) features a more powerful on-board charger, supporting a maximum AC charging power of 11 kW, whereas the Mercedes B 250e (2014-2017) is limited to 9.6 kW.

Property BMW i4 M50 Mercedes B-Class 250e
Max Charging Power (AC) 11 kW 9.6 kW
Max Charging Power (DC) 207 kW - Max Charging Power (DC)
Architecture 400 V 400 V
Charge Port CCS Type 2 Type 2 (Mennekes)
Charging Score 6.9 3.9

Performance

The Mercedes B 250e (2014-2017) is front-wheel drive, while the BMW i4 M50 (2021-2024) offers an all-wheel drive system.

The BMW i4 M50 (2021-2024) boasts greater motor power and accelerates faster from 0 to 100 km/h.

Property BMW i4 M50 Mercedes B-Class 250e
Drive Type AWD FWD
Motor Type PMSM (front), PMSM (rear) PMSM
Motor Power (kW) 400 kW 132 kW
Motor Power (hp) 536 hp 177 hp
Motor Torque 795 Nm 340 Nm
0-100 km/h 3.9 s 7.9 s
Top Speed 225 km/h 160 km/h
Performance Score 6.8 3.5

Dimensions

The BMW i4 M50 (2021-2024) is longer and wider, but the Mercedes B 250e (2014-2017) is taller.

The BMW i4 M50 (2021-2024) boasts a more extended wheelbase.

Property BMW i4 M50 Mercedes B-Class 250e
Length 4783 mm 4359 mm
Width (with Mirrors) 2073 mm 2010 mm
Width (w/o Mirrors) 1852 mm 1786 mm
Height 1448 mm 1557 mm
Wheelbase 2856 mm 2699 mm

Cargo and Towing

The Mercedes B 250e (2014-2017) provides more cargo capacity, featuring both a larger trunk and more space with the rear seats folded.

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

The BMW i4 M50 (2021-2024) has a towing capacity of up to 1600 kg, whereas the Mercedes B 250e (2014-2017) is not officially rated for towing in the EU.

Property BMW i4 M50 Mercedes B-Class 250e
Number of Seats 5 5
Curb Weight 2290 kg 1725 kg
Cargo Volume (Trunk) 470 l 501 l
Cargo Volume (Max) 1290 l 1456 l
Cargo Volume (Frunk) - Cargo Volume (Frunk) - Cargo Volume (Frunk)
Towing Capacity 1600 kg - Towing Capacity
Cargo and Towing Score 5 4.5
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