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Mercedes GLC vs Porsche Cayenne comparison

Compare performance (680 HP vs 1,156 HP), boot space and price (50,300 £ vs 87,000 £ ) 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 (11 Reviews)
rate
  • substantially cheaper
  • substantially more efficient
  • visibly more efficient
  • a bit more electric range
  • moderately lighter
details

Porsche Cayenne

3.3 (2 Reviews)
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  • significantly more power
  • noticeably quicker 0–100 km/h
  • clearly 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

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 87,000 £ . That’s a price difference of around 36,673 £.

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.

In terms of energy consumption, the Mercedes GLC is visibly more efficient: consuming 14.9 kWh/100km compared to 19.7 kWh/100km for the Porsche Cayenne. That’s a difference of about 4.8 kWh/100km.

As for electric range, the Mercedes GLC offers a bit more range – reaching up to 714 km, about 72 km more than the Porsche Cayenne.

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 680 HP. That’s roughly 476 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche Cayenne is noticeably quicker – completing the sprint in 2.5 s, while the Mercedes GLC takes 3.5 s. That’s about 1 s quicker.

Looking at top speed, the Porsche Cayenne is marginally faster – reaching 305 km/h, while the Mercedes GLC tops out at 275 km/h. The difference is around 30 km/h.

There’s also a difference in torque: the Porsche Cayenne delivers noticeably more torque with 1,500 Nm compared to 1,020 Nm. That’s about 480 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 moderately lighter – 1,910 kg compared to 2,130 kg. The difference is around 220 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.

For maximum load capacity, the Mercedes GLC offers only slightly more capacity – up to 1,740 L, about 32 L more than the Porsche Cayenne.

When it comes to payload, the Porsche Cayenne carries moderately more – 705 kg compared to 600 kg. That’s a difference of about 105 kg.

Who wins the race in the data check?

The Mercedes GLC 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 £50,300
GLC

Mercedes GLC

  • Engine Type : Petrol MHEV, Plugin Hybrid, Diesel MHEV, Electric
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 186 - 680 HP
  • Consumption L/100km : 1.6 - 9.7 L/100km
  • Consumption kWh/100km : 14.9 - 16.6 kWh/100km
  • Electric Range : 12 - 714 km
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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 plush cabin comfort and composed road manners into an SUV that feels more grown-up than it looks. It won’t shout for attention, but will quietly please buyers who want refinement, usable space and a touch of luxury without the drama.

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Reviews Mercedes GLC

4.4 (11 Reviews)
rate
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

3.3 (2 Reviews)
rate

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

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Mercedes GLC
Porsche Cayenne

Costs and Consumption
Price
50,300 - 126,600 £
Price
87,000 - 186,400 £
Consumption L/100km
1.6 - 9.7 L/100km
Consumption L/100km
4 - 12.2 L/100km
Consumption kWh/100km
14.9 - 16.6 kWh/100km
Consumption kWh/100km
19.7 - 20.6 kWh/100km
Electric Range
12 - 714 km
Electric Range
74 - 642 km
Battery Capacity
94 kWh
Battery Capacity
21.8 kWh
co2
0 - 221 g/km
co2
0 - 277 g/km
Fuel tank capacity
62 - 65 L
Fuel tank capacity
70 - 90 L

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
4 - 5
Doors
5
Doors
5
Curb weight
1,910 - 2,535 kg
Curb weight
2,130 - 2,720 kg
Trunk capacity
390 - 620 L
Trunk capacity
434 - 781 L
Length
4,716 - 4,845 mm
Length
4,930 mm
Width
1,890 - 1,913 mm
Width
1,980 - 1,989 mm
Height
1,603 - 1,644 mm
Height
1,652 - 1,698 mm
Max trunk capacity
1,490 - 1,740 L
Max trunk capacity
1,344 - 1,708 L
Payload
475 - 600 kg
Payload
365 - 705 kg

Engine and Performance
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV, Electric
Engine Type
Petrol, Plugin Hybrid, Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
186 - 680 HP
Power HP
353 - 1,156 HP
Acceleration 0-100km/h
3.5 - 9 s
Acceleration 0-100km/h
2.5 - 6 s
Max Speed
210 - 275 km/h
Max Speed
248 - 305 km/h
Torque
320 - 1,020 Nm
Torque
500 - 1,500 Nm
Number of Cylinders
4 - 6
Number of Cylinders
6 - 8
Power kW
137 - 500 kW
Power kW
260 - 850 kW
Engine capacity
1,991 - 2,989 cm3
Engine capacity
2,995 - 3,996 cm3

General
Model Year
2,025 - 2,026
Model Year
2,025 - 2,026
CO2 Efficiency Class
F, G, D, B, E, A
CO2 Efficiency Class
G, B, C, 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.