Global EV Comparison: Mercedes B-Class 250e vs Seat Mii Electric

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 Mercedes B 250e (2014-2017) for as low as €11990, while the Seat Mii Electric (2019-2021) begins at €11390.

The two vehicles share the same body style: Hatchback.

Property Mercedes B-Class 250e Seat Mii Electric
Years of Production 2014-2017 2019-2021
Current Status Discontinued Discontinued
Country of Manufacture Germany, Hungary Slovakia
Body Style Hatchback Hatchback
Market Availability EU, USA EU
Price Europe (Used) €11990 €11390
GCC Score 4.6 4.5

Range and Efficiency

The Seat Mii Electric (2019-2021) boasts a greater real-world range, a larger battery, and superior energy efficiency compared to the Mercedes B 250e (2014-2017).

Property Mercedes B-Class 250e Seat Mii Electric
Range (EPA) 140 km - Range (EPA)
Range (WLTP) - Range (WLTP) 259 km
Range (GCC) 142 km 223 km
Battery Capacity (Nominal) 31 kWh 36.8 kWh
Battery Capacity (Usable) 28 kWh 32.3 kWh
Efficiency per 100 km 19.7 kWh/100 km 14.5 kWh/100 km
Efficiency per kWh 5.07 km/kWh 6.9 km/kWh
Range and Efficiency Score 4 6

Charging

Both vehicles utilize a standard 400-volt architecture.

The Mercedes B 250e (2014-2017) has no DC fast charging capability, whereas the Seat Mii Electric (2019-2021) can charge at up to 40 kW.

The Mercedes B 250e (2014-2017) features a more powerful on-board charger, supporting a maximum AC charging power of 9.6 kW, whereas the Seat Mii Electric (2019-2021) is limited to 7.2 kW.

Property Mercedes B-Class 250e Seat Mii Electric
Max Charging Power (AC) 9.6 kW 7.2 kW
Max Charging Power (DC) - Max Charging Power (DC) 40 kW
Architecture 400 V 400 V
Charge Port Type 2 (Mennekes) CCS Type 2
Charging Score 3.9 3.9

Performance

Both vehicles are front-wheel drive.

The Mercedes B 250e (2014-2017) boasts greater motor power and accelerates faster from 0 to 100 km/h.

Property Mercedes B-Class 250e Seat Mii Electric
Drive Type FWD FWD
Motor Type PMSM PMSM
Motor Power (kW) 132 kW 61 kW
Motor Power (hp) 177 hp 82 hp
Motor Torque 340 Nm 212 Nm
0-100 km/h 7.9 s 12.3 s
Top Speed 160 km/h 130 km/h
Performance Score 3.5 1.7

Dimensions

The Mercedes B 250e (2014-2017) is longer, wider, and taller.

The Mercedes B 250e (2014-2017) boasts a more extended wheelbase.

Property Mercedes B-Class 250e Seat Mii Electric
Length 4359 mm 3556 mm
Width (with Mirrors) 2010 mm - Width (with Mirrors)
Width (w/o Mirrors) 1786 mm 1645 mm
Height 1557 mm 1481 mm
Wheelbase 2699 mm 2421 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).

Neither vehicle is officially rated for towing in in the EU.

Property Mercedes B-Class 250e Seat Mii Electric
Number of Seats 5 4
Curb Weight 1725 kg 1235 kg
Cargo Volume (Trunk) 501 l 251 l
Cargo Volume (Max) 1456 l 923 l
Cargo Volume (Frunk) - Cargo Volume (Frunk) - Cargo Volume (Frunk)
Towing Capacity - Towing Capacity - Towing Capacity
Cargo and Towing Score 4.5 3.6
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