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Fiat 500 Convertible vs Mercedes GLC comparison

Compare performance (118 HP vs 472 HP), boot space and price (19,700 £ vs 50,300 £ ) at a glance. Find out which car is the better choice for you – Fiat 500 Convertible or Mercedes GLC?

Fiat 500 Convertible vs Mercedes GLC: Key differences

Fiat 500 Convertible

  • clearly cheaper
  • significantly more electric range
  • significantly lighter
details

Mercedes GLC

4.4 (13 Reviews)
rate
  • considerably more power
  • considerably more efficient
  • considerably quicker 0–100 km/h
  • substantially more trunk space
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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 Convertible

Costs and Efficiency:

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

Fiat 500 Convertible is clearly cheaper – starting at 19,700 £ , while the Mercedes GLC costs 50,300 £ . That’s a price difference of around 30,622 £.

Fuel consumption also shows a difference: the Mercedes GLC uses 1.6 L/100km and is considerably more efficient than the Fiat 500 Convertible with 5.2 L/100km. The difference is about 3.6 L/100km.

As for electric range, the Fiat 500 Convertible offers significantly more range – reaching up to 313 km, about 185 km more than the Mercedes GLC.

GLC

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 GLC offers considerably more power – delivering 472 HP compared to 118 HP. That’s roughly 354 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLC is considerably quicker – completing the sprint in 4.2 s, while the Fiat 500 Convertible takes 9 s. That’s about 4.8 s quicker.

There’s also a difference in torque: the Mercedes GLC delivers considerably more torque with 750 Nm compared to 220 Nm. That’s about 530 Nm more.

Space and Everyday Use:

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

Seats: Mercedes GLC offers more seats – 5 vs 4.

In terms of curb weight, Fiat 500 Convertible is significantly lighter – 1,150 kg compared to 1,985 kg. The difference is around 835 kg.

Looking at boot space, the Mercedes GLC offers substantially more boot space – 620 L compared to 183 L. That’s a difference of about 437 L.

When it comes to payload, the Mercedes GLC carries substantially more – 575 kg compared to 325 kg. That’s a difference of about 250 kg.

Who wins the race in the data check?

The Mercedes GLC holds a decisive overall lead 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 £50,300
GLC

Mercedes GLC

  • Engine Type Diesel MHEV, Plugin Hybrid, Petrol MHEV
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 186 - 472 HP
  • Consumption L/100km 1.6 - 9.4 L/100km
  • Electric Range 122 - 128 km
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Frequently compared as well

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Fiat 500 Convertible
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Fiat 500 Convertible

The Fiat 500 Convertible is a cheeky, retro-styled roof-down city car that turns heads and makes short trips feel like mini vacations. It’s more about charm and personality than practicality, ideal for style-conscious buyers who prefer fun and flair over brute practicality.

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Reviews Fiat 500 Convertible

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

Mercedes GLC

The Mercedes GLC blends quiet refinement with premium materials to create a comfortable, modern cabin that feels more upscale than its size might suggest. It delivers composed handling and confident on-road manners while offering practical versatility and a strong suite of driver assistance and infotainment features.

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Reviews Mercedes GLC

4.4 (13 Reviews)
rate
Zede
10 May 2026, 20:12:35

Too expensive! To justify it with technology that's equal or inferior.

Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Marek
2 Jan 2026, 18:32:30

There’s something about a Mercedes — you have to take it for a spin to feel it and understand why it’s special.

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

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Fiat 500 Convertible
Mercedes GLC

Costs and Consumption
Price
19,700 - 28,300 £
Price
50,300 - 82,100 £
Consumption L/100km
5.2 - 5.3 L/100km
Consumption L/100km
1.6 - 9.4 L/100km
Consumption kWh/100km
13 - 14.9 kWh/100km
Consumption kWh/100km
-
Electric Range
190 - 313 km
Electric Range
122 - 128 km
Battery Capacity
-
Battery Capacity
-
co2
0 - 123 g/km
co2
41 - 214 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Convertible
Body Type
SUV
Seats
4
Seats
5
Doors
-
Doors
-
Curb weight
1,150 - 1,480 kg
Curb weight
1,985 - 2,400 kg
Trunk capacity
183 L
Trunk capacity
390 - 620 L
Length
-
Length
-
Width
1,683 - 1,684 mm
Width
1,890 - 1,920 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
250 - 325 kg
Payload
475 - 575 kg

Engine and Performance
Engine Type
Electric, Petrol MHEV
Engine Type
Diesel MHEV, Plugin Hybrid, Petrol 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
Power HP
65 - 118 HP
Power HP
186 - 472 HP
Acceleration 0-100km/h
9 - 17.3 s
Acceleration 0-100km/h
4.2 - 9 s
Max Speed
-
Max Speed
-
Torque
92 - 220 Nm
Torque
380 - 750 Nm
Number of Cylinders
3
Number of Cylinders
4 - 6
Power kW
48 - 87 kW
Power kW
137 - 347 kW
Engine capacity
999 cm3
Engine capacity
1,993 - 2,999 cm3

General
Model Year
2,025 - 2,026
Model Year
2,025 - 2,026
CO2 Efficiency Class
A, D
CO2 Efficiency Class
D, B, E, F, G
Brand
Fiat
Brand
Mercedes-Benz
What drive types are available for the Fiat 500 Convertible?

The Fiat 500 Convertible 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.