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Fiat 500 vs Mercedes G Class comparison

Compare performance (118 HP vs 605 HP), boot space and price (17,100 £ vs 106,600 £ ) at a glance. Find out which car is the better choice for you – Fiat 500 or Mercedes G Class?

Fiat 500 vs Mercedes G Class: Key differences

Fiat 500

3.7 (1 Reviews)
rate
  • significantly cheaper
  • clearly more efficient
  • clearly more efficient
  • significantly lighter

Mercedes G Class

  • significantly more power
  • clearly more electric range
  • significantly quicker 0–100 km/h
  • considerably more trunk space

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

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

500

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

Fiat 500 is significantly cheaper – starting at 17,100 £ , while the Mercedes G Class costs 106,600 £ . That’s a price difference of around 89,456 £.

Fuel consumption also shows a difference: the Fiat 500 uses 5.2 L/100km and is clearly more efficient than the Mercedes G Class with 8.7 L/100km. The difference is about 3.5 L/100km.

In terms of energy consumption, the Fiat 500 is clearly more efficient: consuming 13 kWh/100km compared to 28 kWh/100km for the Mercedes G Class. That’s a difference of about 15 kWh/100km.

As for electric range, the Mercedes G Class offers clearly more range – reaching up to 468 km, about 137 km more than the Fiat 500.

G Class

Engine and Performance:

Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.

When it comes to engine power, the Mercedes G Class offers significantly more power – delivering 605 HP compared to 118 HP. That’s roughly 487 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 Fiat 500 takes 9 s. That’s about 4.6 s quicker.

Looking at top speed, the Mercedes G Class is a bit faster – reaching 180 km/h, while the Fiat 500 tops out at 155 km/h. The difference is around 25 km/h.

There’s also a difference in torque: the Mercedes G Class delivers substantially more torque with 1,164 Nm compared to 220 Nm. That’s about 944 Nm more.

500

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.

Seats: Mercedes G Class offers more seats – 5 vs 4.

In terms of curb weight, Fiat 500 is significantly lighter – 1,130 kg compared to 2,485 kg. The difference is around 1,355 kg.

Looking at boot space, the Mercedes G Class offers considerably more boot space – 640 L compared to 185 L. That’s a difference of about 455 L.

For maximum load capacity, the Mercedes G Class offers clearly more capacity – up to 1,990 L, about 1,440 L more than the Fiat 500.

When it comes to payload, the Mercedes G Class carries significantly more – 715 kg compared to 325 kg. That’s a difference of about 390 kg.

Who wins the race in the data check?

The Fiat 500 sits just ahead overall 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 £17,100
500

Fiat 500

  • Engine Type : Electric, Petrol MHEV
  • Transmission : Automatic, Manuel
  • Drive Type : Front-Wheel Drive
  • Power HP : 65 - 118 HP
  • Consumption L/100km : 5.2 - 5.3 L/100km
  • Consumption kWh/100km : 13 - 14.7 kWh/100km
  • Electric Range : 190 - 331 km
details

Frequently compared as well

Fiat 500
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Fiat 500
Mercedes G Class

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Fiat 500

The Fiat 500 is a cheeky, retro‑styled city car that turns heads with its iconic looks and playful personality. Perfect for weaving through tight streets and easing into tiny parking spots, it’s aimed at buyers who want style and character more than grand touring prowess.

details
190624_F_500_Lounge_MY2020_06
190624_F_500_Lounge_MY2020_10
190624_F_500_Lounge_MY2020_03

Reviews Fiat 500

3.7 (1 Reviews)
rate
Reijo Muhonen
28 Feb 2026, 16:46:06

I've owned both cars, and I still end up with the Fiat 500 — it always puts me in a good mood. For longer trips I take the train.

How do you mainly use this car? (optional): City / Short distance
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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.

details
18C0997_133
19C0473_066
18C0997_262

Reviews Mercedes G Class

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

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Fiat 500
Mercedes G Class

Costs and Consumption
Price
17,100 - 30,800 £
Price
106,600 - 171,000 £
Consumption L/100km
5.2 - 5.3 L/100km
Consumption L/100km
8.7 - 14.7 L/100km
Consumption kWh/100km
13 - 14.7 kWh/100km
Consumption kWh/100km
28 kWh/100km
Electric Range
190 - 331 km
Electric Range
468 km
Battery Capacity
21.3 - 37.3 kWh
Battery Capacity
116 kWh
co2
0 - 121 g/km
co2
0 - 336 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
Off-Roader
Seats
4
Seats
5
Doors
3 - 4
Doors
5
Curb weight
1,130 - 1,475 kg
Curb weight
2,485 - 3,085 kg
Trunk capacity
183 - 185 L
Trunk capacity
620 - 640 L
Length
3,631 - 3,632 mm
Length
4,624 mm
Width
1,683 - 1,684 mm
Width
1,931 - 1,984 mm
Height
1,527 - 1,532 mm
Height
1,983 mm
Max trunk capacity
440 - 550 L
Max trunk capacity
1,990 L
Payload
250 - 325 kg
Payload
415 - 715 kg

Engine and Performance
Engine Type
Electric, Petrol MHEV
Engine Type
Electric, Petrol MHEV, Diesel MHEV
Transmission
Automatic, Manuel
Transmission
Automatic
Transmission Detail
Reduction Gearbox, Manual Gearbox
Transmission Detail
Reduction Gearbox, Automatic Gearbox
Drive Type
Front-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
65 - 118 HP
Power HP
387 - 605 HP
Acceleration 0-100km/h
9 - 16.2 s
Acceleration 0-100km/h
4.4 - 5.8 s
Max Speed
135 - 155 km/h
Max Speed
180 km/h
Torque
92 - 220 Nm
Torque
760 - 1,164 Nm
Number of Cylinders
3
Number of Cylinders
6 - 8
Power kW
48 - 87 kW
Power kW
285 - 445 kW
Engine capacity
999 cm3
Engine capacity
2,989 - 3,982 cm3

General
Model Year
2,023 - 2,025
Model Year
2,024 - 2,025
CO2 Efficiency Class
A, D
CO2 Efficiency Class
A, G
Brand
Fiat
Brand
Mercedes-Benz
Is the Fiat 500 offered with different drivetrains?

The Fiat 500 is available as Front-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.