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Audi Q3 vs Mercedes C-Class Saloon comparison

Compare performance (272 HP vs 680 HP), boot space and price (38,200 £ vs 41,300 £ ) at a glance. Find out which car is the better choice for you – Audi Q3 or Mercedes C-Class Saloon?

Audi Q3 vs Mercedes C-Class Saloon: Key differences

Audi Q3

4.3 (4 Reviews)
rate
  • marginally cheaper
  • substantially more efficient
  • substantially more electric range
  • marginally lighter
  • barely more trunk space
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Mercedes C-Class Saloon

  • considerably more power
  • substantially 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

Q3

Costs and Efficiency:

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

Audi Q3 is marginally cheaper – starting at 38,200 £ , while the Mercedes C-Class Saloon costs 41,300 £ . That’s a price difference of around 3,097 £.

Fuel consumption also shows a difference: the Audi Q3 uses 1.7 L/100km and is substantially more efficient than the Mercedes C-Class Saloon with 4.5 L/100km. The difference is about 2.8 L/100km.

As for electric range, the Audi Q3 offers substantially more range – reaching up to 119 km, about 108 km more than the Mercedes C-Class Saloon.

C-Class Saloon

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 C-Class Saloon offers considerably more power – delivering 680 HP compared to 272 HP. That’s roughly 408 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes C-Class Saloon is substantially quicker – completing the sprint in 3.4 s, while the Audi Q3 takes 5.7 s. That’s about 2.3 s quicker.

There’s also a difference in torque: the Mercedes C-Class Saloon delivers clearly more torque with 1,020 Nm compared to 400 Nm. That’s about 620 Nm more.

Q3

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 terms of curb weight, Audi Q3 is marginally lighter – 1,635 kg compared to 1,695 kg. The difference is around 60 kg.

Looking at boot space, the Audi Q3 offers barely more boot space – 488 L compared to 455 L. That’s a difference of about 33 L.

When it comes to payload, the Mercedes C-Class Saloon carries very slightly more – 570 kg compared to 535 kg. That’s a difference of about 35 kg.

Who wins the race in the data check?

The Audi Q3 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 £38,200
Q3

Audi Q3

  • Engine Type Petrol MHEV, Petrol, Plugin Hybrid, Diesel
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 150 - 272 HP
  • Consumption L/100km 1.7 - 8.6 L/100km
  • Electric Range 118 - 119 km
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Mercedes C-Class Saloon

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi Q3

The Audi Q3 is a compact premium crossover that blends sharp styling with a well-crafted interior, making it an appealing choice for urban drivers who want a touch of luxury. It delivers a composed ride, intuitive tech features and a practical cabin, so it works well as a comfortable daily driver with an upscale feel.

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Reviews Audi Q3

4.3 (4 Reviews)
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Del
16 Jun 2026, 12:27:22

Very comfortable and very enjoyable to drive, interior very pleasant. Only missing the automatic controls.

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
dd
2 Nov 2025, 22:05:04

Very comfortable. Precise steering. E35 petrol engine, 150 hp — sufficient. Manual gearbox very good and well-geared. Looks very handsome. Very large boot. Premium interior.

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
38,200 - 52,900 £
Price
41,300 - 103,400 £
Consumption L/100km
1.7 - 8.6 L/100km
Consumption L/100km
4.5 - 9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
118 - 119 km
Electric Range
11 km
Battery Capacity
-
Battery Capacity
-
co2
39 - 195 g/km
co2
119 - 205 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
Sedan
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,635 - 1,900 kg
Curb weight
1,695 - 2,165 kg
Trunk capacity
375 - 488 L
Trunk capacity
280 - 455 L
Length
-
Length
-
Width
1,859 mm
Width
1,820 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
505 - 535 kg
Payload
485 - 570 kg

Engine and Performance
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid, Diesel
Engine Type
Petrol MHEV, Diesel MHEV, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Automatic Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
150 - 272 HP
Power HP
183 - 680 HP
Acceleration 0-100km/h
5.7 - 9.2 s
Acceleration 0-100km/h
3.4 - 8.6 s
Max Speed
-
Max Speed
-
Torque
250 - 400 Nm
Torque
250 - 1,020 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
110 - 200 kW
Power kW
135 - 500 kW
Engine capacity
1,498 - 1,984 cm3
Engine capacity
1,496 - 1,999 cm3

General
Model Year
2,025 - 2,026
Model Year
2,024 - 2,025
CO2 Efficiency Class
E, G, B, F
CO2 Efficiency Class
E, D, G
Brand
Audi
Brand
Mercedes-Benz
What drivetrain options does the Audi Q3 have?

The Audi Q3 is available as Front-Wheel Drive or All-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.