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Fiat 500 vs Mercedes S-Class comparison

Compare performance (118 HP vs 635 HP), boot space and price (17,100 £ vs 104,000 £ ) at a glance. Find out which car is the better choice for you – Fiat 500 or Mercedes S-Class?

Fiat 500 vs Mercedes S-Class: Key differences

Fiat 500

3.7 (1 Reviews)
rate
  • considerably cheaper
  • significantly more electric range
  • significantly lighter
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Mercedes S-Class

  • considerably more power
  • substantially more efficient
  • clearly quicker 0–100 km/h
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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

500

Costs and Efficiency:

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

Fiat 500 is considerably cheaper – starting at 17,100 £ , while the Mercedes S-Class costs 104,000 £ . That’s a price difference of around 86,885 £.

Fuel consumption also shows a difference: the Mercedes S-Class uses 2.2 L/100km and is substantially more efficient than the Fiat 500 with 5.2 L/100km. The difference is about 3 L/100km.

As for electric range, the Fiat 500 offers significantly more range – reaching up to 331 km, about 213 km more than the Mercedes S-Class.

S-Class

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 S-Class offers considerably more power – delivering 635 HP compared to 118 HP. That’s roughly 517 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes S-Class is clearly quicker – completing the sprint in 4 s, while the Fiat 500 takes 9 s. That’s about 5 s quicker.

There’s also a difference in torque: the Mercedes S-Class delivers significantly more torque with 850 Nm compared to 220 Nm. That’s about 630 Nm more.

500

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

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

In terms of curb weight, Fiat 500 is significantly lighter – 1,130 kg compared to 2,165 kg. The difference is around 1,035 kg.

When it comes to payload, the Mercedes S-Class carries substantially more – 660 kg compared to 325 kg. That’s a difference of about 335 kg.

Who wins the race in the data check?

The Fiat 500 leads convincingly 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
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Frequently compared as well

Fiat 500
Fiat Panda
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The Fiat 500 is a cheeky, retro-styled city charmer that wraps bright personality and nimble handling into a compact package ideal for urban life. By contrast, the Fiat Panda trades glamour for practicality — roomier, tougher on rough roads and far more usable for families or weekend escapes, so …
Fiat 500
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Fiat 500
Mercedes S-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.

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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
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Practicality / Trunk & Everyday Use
Value for Money

Mercedes S-Class

The Mercedes S-Class wraps peerless comfort, whisper-quiet luxury and subtle tech wizardry into a chauffeur-ready package that still knows how to engage the driver. It’s the car for buyers who want to arrive relaxed, be taken seriously and occasionally enjoy a grin when the road reminds them this limousine can dance.

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Reviews Mercedes S-Class

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Frequently compared as well

Fiat 500
Nissan Micra
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Choosing between the Fiat 500 and the Nissan Micra means weighing Italian flair against practical, value-driven design. The Fiat 500 brings iconic styling and a fun urban drive, while the Nissan Micra emphasizes interior space, fuel efficiency and everyday usability.
Fiat 500
Suzuki Swift
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Choosing between the Fiat 500 and the Suzuki Swift comes down to whether you prefer retro Italian charm and compact city style or a more practical, versatile hatchback with sharper handling. This comparison looks at space, fuel economy, driving feel, equipment and running costs to help you decide …
Fiat 500
Toyota Aygo
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Fiat 500
Hyundai Inster
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Citroen C3
Fiat 500
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Fiat 500
Hyundai i10
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Fiat 500
Suzuki Jimny
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The Fiat 500 and Suzuki Jimny offer distinctly unique experiences for city dwellers and off-road adventurers, respectively. The Fiat 500 charms with its chic urban style, impressive fuel efficiency, and compact dimensions, making it an ideal companion for city driving and tight parking spaces. On …
Fiat 500
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When it comes to urban mobility, the Fiat 500 charms with its iconic retro design and compact agility, making it an ideal choice for city dwellers. In contrast, the Volkswagen Polo offers a more spacious interior and refined driving experience, boasting excellent build quality and advanced safety …
Fiat 500
Mercedes S-Class

Costs and Consumption
Price
17,100 - 27,400 £
Price
104,000 - 201,400 £
Consumption L/100km
5.2 - 5.3 L/100km
Consumption L/100km
2.2 - 11 L/100km
Consumption kWh/100km
13 - 14.7 kWh/100km
Consumption kWh/100km
-
Electric Range
190 - 331 km
Electric Range
98 - 118 km
Battery Capacity
-
Battery Capacity
-
co2
0 - 121 g/km
co2
50 - 252 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
Sedan
Seats
4
Seats
5
Doors
-
Doors
-
Curb weight
1,130 - 1,475 kg
Curb weight
2,165 - 2,650 kg
Trunk capacity
183 - 185 L
Trunk capacity
-
Length
-
Length
-
Width
1,683 - 1,684 mm
Width
1,921 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
250 - 325 kg
Payload
420 - 660 kg

Engine and Performance
Engine Type
Electric, Petrol MHEV
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV
Transmission
Automatic, Manuel
Transmission
Automatic
Transmission Detail
Reduction Gearbox, Manual Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
Front-Wheel Drive
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Power HP
65 - 118 HP
Power HP
336 - 635 HP
Acceleration 0-100km/h
9 - 16.2 s
Acceleration 0-100km/h
4 - 5.7 s
Max Speed
-
Max Speed
-
Torque
92 - 220 Nm
Torque
560 - 850 Nm
Number of Cylinders
3
Number of Cylinders
6 - 8
Power kW
48 - 87 kW
Power kW
247 - 467 kW
Engine capacity
999 cm3
Engine capacity
2,989 - 3,982 cm3

General
Model Year
2025
Model Year
2026
CO2 Efficiency Class
A, D
CO2 Efficiency Class
G, B, F
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.