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Audi Q7 vs Mercedes C-Class Saloon comparison

Compare performance (507 HP vs 680 HP), boot space and price (70,600 £ vs 41,300 £ ) at a glance. Find out which car is the better choice for you – Audi Q7 or Mercedes C-Class Saloon?

Audi Q7 vs Mercedes C-Class Saloon: Key differences

Audi Q7

4.5 (2 Reviews)
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  • a bit more efficient
  • significantly more electric range
  • considerably more trunk space
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Mercedes C-Class Saloon

  • considerably cheaper
  • noticeably more power
  • clearly quicker 0–100 km/h
  • clearly lighter
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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

Q7

Costs and Efficiency:

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

Mercedes C-Class Saloon is considerably cheaper – starting at 41,300 £ , while the Audi Q7 costs 70,600 £ . That’s a price difference of around 29,303 £.

Fuel consumption also shows a difference: the Audi Q7 uses 3.8 L/100km and is a bit more efficient than the Mercedes C-Class Saloon with 4.5 L/100km. The difference is about 0.7 L/100km.

As for electric range, the Audi Q7 offers significantly more range – reaching up to 82 km, about 71 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 noticeably more power – delivering 680 HP compared to 507 HP. That’s roughly 173 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes C-Class Saloon is clearly quicker – completing the sprint in 3.4 s, while the Audi Q7 takes 4.1 s. That’s about 0.7 s quicker.

There’s also a difference in torque: the Mercedes C-Class Saloon delivers clearly more torque with 1,020 Nm compared to 770 Nm. That’s about 250 Nm more.

Q7

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: Audi Q7 offers more seats – 7 vs 5.

In terms of curb weight, Mercedes C-Class Saloon is clearly lighter – 1,695 kg compared to 2,055 kg. The difference is around 360 kg.

Looking at boot space, the Audi Q7 offers considerably more boot space – 887 L compared to 455 L. That’s a difference of about 432 L.

When it comes to payload, the Audi Q7 carries visibly more – 885 kg compared to 570 kg. That’s a difference of about 315 kg.

Who wins the race in the data check?

The Audi Q7 is clearly superior 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 £70,600
Q7

Audi Q7

  • Engine Type Petrol MHEV, Diesel MHEV, Petrol, Plugin Hybrid
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 231 - 507 HP
  • Consumption L/100km 3.8 - 11.9 L/100km
  • Electric Range 81 - 82 km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi Q7

The Audi Q7 cuts an imposing figure on the road, balancing restrained luxury with a spacious, tech-rich cabin that makes long journeys feel effortless. It rides with confident composure and polished manners, so if you want a premium family SUV that feels grown-up and worth the badge, the Q7 is a persuasive choice — even the in-laws will be impressed.

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Reviews Audi Q7

4.5 (2 Reviews)
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A.B.
24 Mar 2026, 11:45:19

Constant faults with the touch door opening, the trunk, sign-reading and the front obstacle sensors. The service repaired it under warranty five times — they replaced wiring harnesses, a sensor, uploaded software — and then gave up. They told me they don’t know what else to do. That’s the customer care at a German premium brand. A car worth over 400,000 and they tell the customer they don’t know what to do. I paid the final installment and I’m giving the car back to them. I’m taking a Chinese BYD Seal U DM-i plug-in hybrid with better equipment for 165k after a discount from 225k. With that attitude to customers and those high prices, the Germans will have fewer and fewer people interested in their cars — but they’ve only got themselves to blame!!!

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

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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Audi Q7
Mercedes C-Class Saloon

Costs and Consumption
Price
70,600 - 100,600 £
Price
41,300 - 103,400 £
Consumption L/100km
3.8 - 11.9 L/100km
Consumption L/100km
4.5 - 9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
81 - 82 km
Electric Range
11 km
Battery Capacity
-
Battery Capacity
-
co2
86 - 271 g/km
co2
119 - 205 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
Sedan
Seats
5 - 7
Seats
5
Doors
-
Doors
-
Curb weight
2,055 - 2,460 kg
Curb weight
1,695 - 2,165 kg
Trunk capacity
563 - 887 L
Trunk capacity
280 - 455 L
Length
-
Length
-
Width
1,970 mm
Width
1,820 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
640 - 885 kg
Payload
485 - 570 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV, Petrol, Plugin Hybrid
Engine Type
Petrol MHEV, Diesel MHEV, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
231 - 507 HP
Power HP
183 - 680 HP
Acceleration 0-100km/h
4.1 - 7.1 s
Acceleration 0-100km/h
3.4 - 8.6 s
Max Speed
-
Max Speed
-
Torque
500 - 770 Nm
Torque
250 - 1,020 Nm
Number of Cylinders
6 - 8
Number of Cylinders
4
Power kW
170 - 373 kW
Power kW
135 - 500 kW
Engine capacity
2,967 - 3,996 cm3
Engine capacity
1,496 - 1,999 cm3

General
Model Year
2025
Model Year
2,024 - 2,025
CO2 Efficiency Class
G, B
CO2 Efficiency Class
E, D, G
Brand
Audi
Brand
Mercedes-Benz
Is the Audi Q7 offered with different drivetrains?

The Audi Q7 is available as 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.