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Mazda 3 Sedan vs Mercedes C-Class Saloon comparison

Compare performance (186 HP vs 680 HP), boot space and price (25,400 £ vs 41,300 £ ) at a glance. Find out which car is the better choice for you – Mazda 3 Sedan or Mercedes C-Class Saloon?

Mazda 3 Sedan vs Mercedes C-Class Saloon: Key differences

Mazda 3 Sedan

4.7 (1 Reviews)
rate
  • clearly cheaper
  • slightly lighter
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Mercedes C-Class Saloon

  • substantially more power
  • markedly more efficient
  • considerably quicker 0–100 km/h
  • very slightly more trunk space
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By Achim Sedelmaier

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

3 Sedan

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.

Mazda 3 Sedan is clearly cheaper – starting at 25,400 £ , while the Mercedes C-Class Saloon costs 41,300 £ . That’s a price difference of around 15,877 £.

Fuel consumption also shows a difference: the Mercedes C-Class Saloon uses 4.5 L/100km and is markedly more efficient than the Mazda 3 Sedan with 5.5 L/100km. The difference is about 1 L/100km.

C-Class Saloon

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 C-Class Saloon offers substantially more power – delivering 680 HP compared to 186 HP. That’s roughly 494 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes C-Class Saloon is considerably quicker – completing the sprint in 3.4 s, while the Mazda 3 Sedan takes 8.1 s. That’s about 4.7 s quicker.

There’s also a difference in torque: the Mercedes C-Class Saloon delivers considerably more torque with 1,020 Nm compared to 240 Nm. That’s about 780 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.

Both vehicles offer seating for 5 people.

In terms of curb weight, Mazda 3 Sedan is slightly lighter – 1,417 kg compared to 1,695 kg. The difference is around 278 kg.

Looking at boot space, the Mercedes C-Class Saloon offers very slightly more boot space – 455 L compared to 450 L. That’s a difference of about 5 L.

When it comes to payload, the Mercedes C-Class Saloon carries somewhat more – 570 kg compared to 501 kg. That’s a difference of about 69 kg.

Who wins the race in the data check?

The Mercedes C-Class Saloon 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 £41,300
C-Class Saloon

Mercedes C-Class Saloon

  • Engine Type Petrol MHEV, Diesel MHEV, Plugin Hybrid
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 183 - 680 HP
  • Consumption L/100km 4.5 - 9 L/100km
  • Electric Range 11 km
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Frequently compared as well

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Mazda 3 Sedan
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mazda 3 Sedan

The Mazda 3 Sedan dresses like a compact premium car, with sculpted lines and an interior that punches well above its class. It rewards drivers with eager handling and a composed, comfortable ride that turns routine runs into something a bit more enjoyable — proof that style and substance can share the same key.

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Reviews Mazda 3 Sedan

4.7 (1 Reviews)
rate

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

Mercedes C-Class Saloon

The Mercedes C‑Class is the compact executive that dresses like it owns the boulevard, with an interior that blends modern elegance and plush comfort to make everyday driving feel unexpectedly special. On the road it pairs poise with a hint of cheeky agility, rewarding drivers who want refinement without forfeiting a touch of fun — and yes, it still looks great in the driveway.

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Reviews Mercedes C-Class Saloon

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

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Mercedes C-Class Saloon

Costs and Consumption
Price
25,400 - 34,700 £
Price
41,300 - 103,400 £
Consumption L/100km
5.5 - 6 L/100km
Consumption L/100km
4.5 - 9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
11 km
Battery Capacity
-
Battery Capacity
-
co2
123 - 137 g/km
co2
119 - 205 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
Sedan
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,417 - 1,468 kg
Curb weight
1,695 - 2,165 kg
Trunk capacity
450 L
Trunk capacity
280 - 455 L
Length
-
Length
-
Width
1,795 mm
Width
1,820 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
482 - 501 kg
Payload
485 - 570 kg

Engine and Performance
Engine Type
Petrol MHEV
Engine Type
Petrol MHEV, Diesel MHEV, Plugin Hybrid
Transmission
Manuel, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
Front-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
140 - 186 HP
Power HP
183 - 680 HP
Acceleration 0-100km/h
8.1 - 9.8 s
Acceleration 0-100km/h
3.4 - 8.6 s
Max Speed
-
Max Speed
-
Torque
238 - 240 Nm
Torque
250 - 1,020 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
103 - 137 kW
Power kW
135 - 500 kW
Engine capacity
1,998 - 2,488 cm3
Engine capacity
1,496 - 1,999 cm3

General
Model Year
2026
Model Year
2,024 - 2,025
CO2 Efficiency Class
D, E
CO2 Efficiency Class
E, D, G
Brand
Mazda
Brand
Mercedes-Benz
What drivetrain options does the Mazda 3 Sedan have?

The Mazda 3 Sedan is offered with 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.