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Mercedes G-Class vs MG MG3 comparison

Compare performance (605 HP vs 194 HP), boot space and price (106,600 £ vs 15,400 £ ) at a glance. Find out which car is the better choice for you – Mercedes G-Class or MG MG3?

Mercedes G-Class vs MG MG3: Key differences

Mercedes G-Class

  • clearly more power
  • significantly quicker 0–100 km/h
  • substantially more trunk space
details

MG MG3

5 (1 Reviews)
rate
  • clearly cheaper
  • considerably more efficient
  • clearly lighter
details

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

By Achim Sedelmaier

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

G-Class

Costs and Efficiency:

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

MG MG3 is clearly cheaper – starting at 15,400 £ , while the Mercedes G-Class costs 106,600 £ . That’s a price difference of around 91,170 £.

Fuel consumption also shows a difference: the MG MG3 uses 4.4 L/100km and is considerably more efficient than the Mercedes G-Class with 8.7 L/100km. The difference is about 4.3 L/100km.

MG3

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the Mercedes G-Class offers clearly more power – delivering 605 HP compared to 194 HP. That’s roughly 411 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes G-Class is significantly quicker – completing the sprint in 4.4 s, while the MG MG3 takes 8 s. That’s about 3.6 s quicker.

There’s also a difference in torque: the Mercedes G-Class delivers considerably more torque with 1,164 Nm compared to 148 Nm. That’s about 1,016 Nm more.

G-Class

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 5 people.

In terms of curb weight, MG MG3 is clearly lighter – 1,237 kg compared to 2,485 kg. The difference is around 1,248 kg.

Looking at boot space, the Mercedes G-Class offers substantially more boot space – 640 L compared to 293 L. That’s a difference of about 347 L.

When it comes to payload, the Mercedes G-Class carries clearly more – 715 kg compared to 448 kg. That’s a difference of about 267 kg.

Who wins the race in the data check?

The MG MG3 is decisively ahead in the objective data comparison.
This result only shows which model scores more points on paper – not which of the two cars feels right for you.

from £15,400
MG3

MG MG3

  • Engine Type Petrol, Full Hybrid
  • Transmission Manuel, Automatic
  • Drive Type Front-Wheel Drive
  • Power HP 116 - 194 HP
  • Consumption L/100km 4.4 - 6.1 L/100km
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Mercedes G-Class
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes G-Class

The G-Class, often called the G‑Wagen, is a blocky icon that blends unapologetic off-road prowess with a plush, modern cabin, announcing your arrival before you even step out. It’s equally at home crawling over rocks or cruising city streets, and owning one feels like adopting a very expensive, very capable personality.

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18C0997_133
19C0473_066
18C0997_262

Reviews Mercedes G-Class

No reviews yet. Share your experience and help others decide.

MG MG3

The MG3 is a cheeky city hatch that pairs bold, youthful styling with sprightly handling for drivers who want personality on a budget. Its cabin is bright and cleverly packaged, offering sensible space and a fun-to-drive character that turns mundane commutes into something a bit more enjoyable.

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KV-1-1
Left-Back-30°-1
Front-Row-Space-1
Trunk-3

Reviews MG MG3

5 (1 Reviews)
rate
Giorgio catacchio
20 Sept 2025, 00:08:28

I've owned the MG3 Hybrid for a year — I travel a lot, never a dull moment; comes fully loaded as standard, incredible acceleration, etc.

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Mercedes G-Class
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Costs and Consumption
Price
106,600 - 171,000 £
Price
15,400 - 21,400 £
Consumption L/100km
8.7 - 14.7 L/100km
Consumption L/100km
4.4 - 6.1 L/100km
Consumption kWh/100km
28 kWh/100km
Consumption kWh/100km
-
Electric Range
479 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
0 - 336 g/km
co2
100 - 137 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Off-Roader
Body Type
Hatchback
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
2,485 - 3,085 kg
Curb weight
1,237 - 1,285 kg
Trunk capacity
640 L
Trunk capacity
293 L
Length
-
Length
-
Width
1,931 - 1,984 mm
Width
1,797 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
115 - 715 kg
Payload
373 - 448 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV, Electric
Engine Type
Petrol, Full Hybrid
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Transmission Detail
Manual Gearbox, Automatic Gearbox
Drive Type
All-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
387 - 605 HP
Power HP
116 - 194 HP
Acceleration 0-100km/h
4.4 - 5.8 s
Acceleration 0-100km/h
8 - 10.8 s
Max Speed
-
Max Speed
-
Torque
760 - 1,164 Nm
Torque
148 Nm
Number of Cylinders
6 - 8
Number of Cylinders
4
Power kW
285 - 445 kW
Power kW
85 - 143 kW
Engine capacity
2,989 - 3,982 cm3
Engine capacity
1,490 - 1,495 cm3

General
Model Year
2,025 - 2,026
Model Year
2025
CO2 Efficiency Class
G, A
CO2 Efficiency Class
E, C
Brand
Mercedes-Benz
Brand
MG
What drivetrain options does the Mercedes G-Class have?

The Mercedes G-Class is available as All-Wheel Drive.

DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. The displayed prices are estimates based on German list prices, adjusted to the respective country’s VAT. Country-specific registration taxes are not included. This information is not legally binding.