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

Side-by-side comparison of all specifications in imperial units (mi, lb). To see metric units (km, kg), switch website version to Global.
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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 $9496, while the Seat Mii Electric (2019-2021) was never offered for sale in the United States.

The two vehicles share the same body style: Hatchback.

Property Seat Mii Electric Mercedes B-Class 250e
Years of Production 2019-2021 2014-2017
Current Status Discontinued Discontinued
Country of Manufacture Slovakia Germany, Hungary
Body Style Hatchback Hatchback
Market Availability EU EU, USA
Price USA (Used) - Price USA (Used) $9496
GCC Score 4.5 4.6

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 Seat Mii Electric Mercedes B-Class 250e
Range (EPA) - Range (EPA) 87 mi
Range (WLTP) 161 mi - Range (WLTP)
Range (GCC) 139 mi 88 mi
Battery Capacity (Nominal) 36.8 kWh 31 kWh
Battery Capacity (Usable) 32.3 kWh 28 kWh
Efficiency per 100 mi 23.2 kWh/100 mi 31.8 kWh/100 mi
Efficiency per kWh 4.3 mi/kWh 3.14 mi/kWh
Range and Efficiency Score 6 4

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 10 kW, whereas the Seat Mii Electric (2019-2021) is limited to 7.2 kW.

Property Seat Mii Electric Mercedes B-Class 250e
Max Charging Power (AC) 7.2 kW 10 kW
Max Charging Power (DC) 40 kW - Max Charging Power (DC)
Architecture 400 V 400 V
Charge Port CCS Type 2 Type 1 (J1772)
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 60 mph.

Property Seat Mii Electric Mercedes B-Class 250e
Drive Type FWD FWD
Motor Type PMSM PMSM
Motor Power (kW) 61 kW 132 kW
Motor Power (hp) 82 hp 177 hp
Motor Torque 156 lb-ft 251 lb-ft
0-60 mph 11.8 s 7.5 s
Top Speed 81 mph 99 mph
Performance Score 1.7 3.5

Dimensions

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

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

Property Seat Mii Electric Mercedes B-Class 250e
Length 140 in 171.6 in
Width (with Mirrors) - Width (with Mirrors) 79.1 in
Width (w/o Mirrors) 64.8 in 70.3 in
Height 58.3 in 61.3 in
Wheelbase 95.3 in 106.3 in

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 the US.

Property Seat Mii Electric Mercedes B-Class 250e
Number of Seats 4 5
Curb Weight 2723 lb 3924 lb
Cargo Volume (Trunk) 8.9 ft3 17.7 ft3
Cargo Volume (Max) 32.6 ft3 51.4 ft3
Cargo Volume (Frunk) - Cargo Volume (Frunk) - Cargo Volume (Frunk)
Towing Capacity - Towing Capacity - Towing Capacity
Cargo and Towing Score 3.6 4.5
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