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Mercedes GLC vs Porsche Cayenne comparison

Compare performance (472 HP vs 1,156 HP), boot space and price (50,300 £ vs 90,200 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLC or Porsche Cayenne?

Mercedes GLC vs Porsche Cayenne: Key differences

Mercedes GLC

4.4 (13 Reviews)
rate
  • substantially cheaper
  • substantially more efficient
  • very slightly lighter
details

Porsche Cayenne

3.2 (3 Reviews)
rate
  • significantly more power
  • substantially more electric range
  • considerably quicker 0–100 km/h
  • clearly more trunk space
details

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

GLC

Costs and Efficiency:

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

Mercedes GLC is substantially cheaper – starting at 50,300 £ , while the Porsche Cayenne costs 90,200 £ . That’s a price difference of around 39,844 £.

Fuel consumption also shows a difference: the Mercedes GLC uses 1.6 L/100km and is substantially more efficient than the Porsche Cayenne with 4 L/100km. The difference is about 2.4 L/100km.

As for electric range, the Porsche Cayenne offers substantially more range – reaching up to 668 km, about 540 km more than the Mercedes GLC.

Cayenne

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 Porsche Cayenne offers significantly more power – delivering 1,156 HP compared to 472 HP. That’s roughly 684 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche Cayenne is considerably quicker – completing the sprint in 2.5 s, while the Mercedes GLC takes 4.2 s. That’s about 1.7 s quicker.

There’s also a difference in torque: the Porsche Cayenne delivers significantly more torque with 1,500 Nm compared to 750 Nm. That’s about 750 Nm more.

GLC

Space and Everyday Use:

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

Both vehicles offer seating for 5 people.

In terms of curb weight, Mercedes GLC is very slightly lighter – 1,985 kg compared to 2,130 kg. The difference is around 145 kg.

Looking at boot space, the Porsche Cayenne offers clearly more boot space – 781 L compared to 620 L. That’s a difference of about 161 L.

When it comes to payload, the Porsche Cayenne carries moderately more – 705 kg compared to 575 kg. That’s a difference of about 130 kg.

Who wins the race in the data check?

The Porsche Cayenne is far ahead 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 £90,200
Cayenne

Porsche Cayenne

  • Engine Type Petrol, Plugin Hybrid, Electric
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 353 - 1,156 HP
  • Consumption L/100km 4 - 11 L/100km
  • Consumption kWh/100km 18.9 - 20.6 kWh/100km
  • Electric Range 74 - 668 km
details

Frequently compared as well

Mercedes GLC
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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.

details
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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

Porsche Cayenne

Few SUVs blend athletic poise and Teutonic precision like the Porsche Cayenne, putting genuine sports‑car feeling into a roomy, everyday package. If you want a practical family hauler that still makes you grin every time you merge, the Cayenne delivers — turning errands into an excuse for a spirited drive.

details
P17_0701
P17_0780
P17_0777
P17_0776
P17_0784

Reviews Porsche Cayenne

3.2 (3 Reviews)
rate

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

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Porsche Cayenne

Costs and Consumption
Price
50,300 - 82,100 £
Price
90,200 - 144,400 £
Consumption L/100km
1.6 - 9.4 L/100km
Consumption L/100km
4 - 11 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
18.9 - 20.6 kWh/100km
Electric Range
122 - 128 km
Electric Range
74 - 668 km
Battery Capacity
-
Battery Capacity
-
co2
41 - 214 g/km
co2
0 - 249 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
4 - 5
Doors
-
Doors
-
Curb weight
1,985 - 2,400 kg
Curb weight
2,130 - 2,725 kg
Trunk capacity
390 - 620 L
Trunk capacity
434 - 781 L
Length
-
Length
-
Width
1,890 - 1,920 mm
Width
1,980 - 1,983 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
475 - 575 kg
Payload
525 - 705 kg

Engine and Performance
Engine Type
Diesel MHEV, Plugin Hybrid, Petrol MHEV
Engine Type
Petrol, Plugin Hybrid, Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
186 - 472 HP
Power HP
353 - 1,156 HP
Acceleration 0-100km/h
4.2 - 9 s
Acceleration 0-100km/h
2.5 - 6 s
Max Speed
-
Max Speed
-
Torque
380 - 750 Nm
Torque
500 - 1,500 Nm
Number of Cylinders
4 - 6
Number of Cylinders
6
Power kW
137 - 347 kW
Power kW
260 - 850 kW
Engine capacity
1,993 - 2,999 cm3
Engine capacity
2,995 cm3

General
Model Year
2,025 - 2,026
Model Year
2,025 - 2,026
CO2 Efficiency Class
D, B, E, F, G
CO2 Efficiency Class
G, B, A
Brand
Mercedes-Benz
Brand
Porsche
Is the Mercedes GLC offered with different drivetrains?

Available configurations include 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.