@ Alfa Romeo / Stellantis Media
@ Mercedes-Benz Group Media
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Alfa Romeo Giulia vs Mercedes G Class – Performance, range & efficiency compared

Everyday use, family trips or long-distance drives – here’s where the differences show.
Discover whether Alfa Romeo Giulia or Mercedes G Class fits your lifestyle better.

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

Giulia @ Alfa Romeo / Stellantis Media

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Alfa Romeo Giulia has a convincingly advantage in terms of price – it starts at 48000 £, while the Mercedes G Class costs 106600 £. That’s a price difference of around 58590 £.

Fuel consumption also shows a difference: Alfa Romeo Giulia manages with 5.40 L and is therefore convincingly more efficient than the Mercedes G Class with 8.70 L. The difference is about 3.30 L per 100 km.

G Class @ Mercedes-Benz Group Media

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 G Class has a convincingly edge – offering 605 HP compared to 210 HP. That’s roughly 395 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mercedes G Class is clearly quicker – completing the sprint in 4.40 s, while the Alfa Romeo Giulia takes 6.80 s. That’s about 2.40 s faster.

In terms of top speed, the Alfa Romeo Giulia performs slight better – reaching 235 km/h, while the Mercedes G Class tops out at 220 km/h. The difference is around 15 km/h.

There’s also a difference in torque: Mercedes G Class pulls convincingly stronger with 1164 Nm compared to 470 Nm. That’s about 694 Nm difference.

Giulia @ Alfa Romeo / Stellantis 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, Alfa Romeo Giulia is significantly lighter – 1640 kg compared to 2485 kg. The difference is around 845 kg.

In terms of boot space, the Mercedes G Class offers distinct more room – 640 L compared to 480 L. That’s a difference of about 160 L.

When it comes to payload, Mercedes G Class distinct takes the win – 715 kg compared to 535 kg. That’s a difference of about 180 kg.

Who comes out on top?

Overall, the Mercedes G Class shows itself to be dominates this comparison and secures the title of DriveDuel Champion.
It convinces with the more balanced overall package and proves to be the more versatile choice for everyday use.

from about £106,600
G Class @ Mercedes-Benz Group Media

Mercedes G Class

  • Engine Type : Electric, Petrol MHEV, Diesel MHEV
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 387 - 605 HP
  • Consumption L/100km : 8.7 - 14.7 L
  • Consumption kWh/100km : 28 kWh
  • Electric Range : 468 km

Alfa Romeo Giulia

The Alfa Romeo Giulia captivates with its stunning Italian design and dynamic performance, representing a perfect blend of elegance and sportiness. Its engaging driving experience, characterised by precise handling and responsive steering, appeals to enthusiasts who crave the thrill of the road. Inside, the Giulia showcases a beautifully crafted interior that combines luxury with cutting-edge technology, making every journey a delight.

details

Mercedes G Class

The Mercedes-Benz G-Class stands as a symbol of rugged luxury, combining robust off-road capabilities with sophisticated design. Its iconic boxy shape and imposing presence are complemented by a lavish interior that offers a blend of comfort and cutting-edge technology. Despite its longstanding heritage, the G-Class continues to evolve, maintaining its status as a premier choice for those seeking both adventure and opulence.

details
Alfa Romeo Giulia
Mercedes G Class
Giulia @ Alfa Romeo / Stellantis Media
G Class @ Mercedes-Benz Group Media

Costs and Consumption

Price
48000 - 57000 £
Price
106600 - 171000 £
Consumption L/100km
5.40 L
Consumption L/100km
8.7 - 14.7 L
Consumption kWh/100km
-
Consumption kWh/100km
28 kWh
Electric Range
-
Electric Range
468 km
Battery Capacity
-
Battery Capacity
116 kWh
co2
141 g/km
co2
0 - 336 g/km
Fuel tank capacity
58 L
Fuel tank capacity
100 L

Dimensions and Body

Body Type
Sedan
Body Type
Off-Roader
Seats
5
Seats
5
Doors
4
Doors
5
Curb weight
1640 kg
Curb weight
2485 - 3085 kg
Trunk capacity
480 L
Trunk capacity
620 - 640 L
Length
4650 mm
Length
4624 - 4873 mm
Width
1860 mm
Width
1931 - 1984 mm
Height
1438 mm
Height
1973 - 1983 mm
Max trunk capacity
-
Max trunk capacity
1990 - 2010 L
Payload
535 kg
Payload
415 - 715 kg

Engine and Performance

Engine Type
Diesel
Engine Type
Electric, Petrol MHEV, Diesel MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Reduction Gearbox, Automatic Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
210 HP
Power HP
387 - 605 HP
Acceleration 0-100km/h
6.80 s
Acceleration 0-100km/h
4.4 - 5.8 s
Max Speed
235 km/h
Max Speed
180 - 220 km/h
Torque
470 Nm
Torque
760 - 1164 Nm
Number of Cylinders
4
Number of Cylinders
6 - 8
Power kW
154 kW
Power kW
285 - 445 kW
Engine capacity
2143 cm3
Engine capacity
2989 - 3982 cm3

General

Model Year
2024 - 2025
Model Year
2024 - 2025
CO2 Efficiency Class
E
CO2 Efficiency Class
A, G
Brand
Alfa Romeo
Brand
Mercedes-Benz
Is the Alfa Romeo Giulia offered with different drivetrains?

Available configurations include 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.