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@ MG Motor / SAIC Motor Corporation
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Mercedes B Class vs MG MG4 – Differences & prices compared

Everyday use, family trips or long-distance drives – here’s where the differences show.
Discover whether Mercedes B Class or MG MG4 fits your lifestyle better.

Mercedes B Class

5 (4 Reviews)
rate

MG MG4

5 (1 Reviews)
rate

Here’s where it gets real: The technical differences in detail

B Class @ Mercedes-Benz Group Media

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

MG MG4 has a barely noticeable advantage in terms of price – it starts at 30500 £, while the Mercedes B Class costs 33100 £. That’s a price difference of around 2581 £.

As for range, the MG MG4 performs decisively better – achieving up to 450 km, about 367 km more than the Mercedes B Class.

MG4 @ MG Motor / SAIC Motor Corporation

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the Mercedes B Class has a slightly edge – offering 238 HP compared to 204 HP. That’s roughly 34 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mercedes B Class is slight quicker – completing the sprint in 6.50 s, while the MG MG4 takes 7.10 s. That’s about 0.60 s faster.

In terms of top speed, the Mercedes B Class performs noticeable better – reaching 250 km/h, while the MG MG4 tops out at 160 km/h. The difference is around 90 km/h.

There’s also a difference in torque: Mercedes B Class pulls clearly stronger with 450 Nm compared to 250 Nm. That’s about 200 Nm difference.

B Class @ Mercedes-Benz Group Media

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Both vehicles offer seating for 5 people.

In curb weight, Mercedes B Class is to a small extent lighter – 1405 kg compared to 1635 kg. The difference is around 230 kg.

In terms of boot space, the Mercedes B Class offers distinct more room – 455 L compared to 363 L. That’s a difference of about 92 L.

In maximum load capacity, the MG MG4 performs a bit better – up to 1765 L, which is about 225 L more than the Mercedes B Class.

When it comes to payload, Mercedes B Class to a small extent takes the win – 550 kg compared to 449 kg. That’s a difference of about 101 kg.

Who wins the race?

The MG MG4 proves to be outperforms in nearly all aspects and therefore becomes our DriveDuel Champion!
MG MG4 is the better all-rounder in this comparison.

Mercedes B Class
MG MG4

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £30,500
MG4 @ MG Motor / SAIC Motor Corporation

MG MG4

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive
  • Power HP : 170 - 204 HP
  • Consumption kWh/100km : 16.4 - 17 kWh
  • Electric Range : 330 - 450 km
details

Mercedes B Class

5 (4 Reviews)
rate

The Mercedes B-Class is a smart, grown-up compact people carrier that dresses everyday practicality in a near‑premium polish, perfect for buyers who want comfort and a classy badge without the theatrics. It won’t set your pulse racing on a back road, but it will make school runs, commutes and grocery hauls feel pleasantly civilized — a reliable, slightly posh companion for real life.

details
18C0947_011 @ Mercedes-Benz Group Media
18C0947_009 @ Mercedes-Benz Group Media
18C0953_005 @ Mercedes-Benz Group Media
18C0953_035 @ Mercedes-Benz Group Media
18C0947_044 @ Mercedes-Benz Group Media

MG MG4

5 (1 Reviews)
rate

The MG4 is a sprightly electric hatch that marries bold, modern looks with genuinely useful practicality, making it a great everyday companion for city and weekend life alike. Inside it surprises with a smart, user-friendly cabin and an engaging drive that delivers more personality than you might expect for the price.

details
MG.027.STUDIO @ MG Motor / SAIC Motor Corporation
MG.028.STUDIO @ MG Motor / SAIC Motor Corporation
MG.036.STUDIO @ MG Motor / SAIC Motor Corporation
MG.038_0.STUDIO @ MG Motor / SAIC Motor Corporation

Reviews Mercedes B Class

5 (4 Reviews)
rate

Reviews MG MG4

5 (1 Reviews)
rate

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Costs and Consumption
Price
33100 - 52500 £
Price
30500 - 36500 £
Consumption L/100km
2.5 - 6.9 L
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
16.4 - 17 kWh
Electric Range
83 km
Electric Range
330 - 450 km
Battery Capacity
12.90 kWh
Battery Capacity
49 - 61.7 kWh
co2
56 - 156 g/km
co2
0 g/km
Fuel tank capacity
35 - 51 L
Fuel tank capacity
-

Dimensions and Body
Body Type
MPV
Body Type
Hatchback
Seats
5
Seats
5
Doors
5
Doors
5
Curb weight
1405 - 1745 kg
Curb weight
1635 - 1695 kg
Trunk capacity
405 - 455 L
Trunk capacity
350 - 363 L
Length
4419 mm
Length
4287 mm
Width
1796 mm
Width
1836 mm
Height
1562 mm
Height
1504 - 1516 mm
Max trunk capacity
1440 - 1540 L
Max trunk capacity
1165 - 1765 L
Payload
505 - 550 kg
Payload
389 - 449 kg

Engine and Performance
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
116 - 238 HP
Power HP
170 - 204 HP
Acceleration 0-100km/h
6.5 - 10 s
Acceleration 0-100km/h
7.1 - 7.6 s
Max Speed
200 - 250 km/h
Max Speed
160 km/h
Torque
200 - 450 Nm
Torque
250 Nm
Number of Cylinders
4
Number of Cylinders
-
Power kW
85 - 175 kW
Power kW
125 - 150 kW
Engine capacity
1332 - 1991 cm3
Engine capacity
-

General
Model Year
2024 - 2025
Model Year
2025
CO2 Efficiency Class
B, D, E, F
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
MG

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What drivetrain options does the Mercedes B Class have?

The Mercedes B Class is offered with Front-Wheel Drive or All-Wheel Drive.

The prices and data displayed are estimates based on German list prices and may vary by country. This information is not legally binding.

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