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Mercedes GLC vs Porsche Cayenne - Differences and prices compared

Compare performance (680 HP vs 1156 HP), boot space and price (50300 £ vs 87000 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLC or Porsche Cayenne?

Mercedes GLC

3.9 (6 Reviews)
rate

Porsche Cayenne

1.9 (1 Reviews)
rate

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

GLC

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.

Mercedes GLC has a clearly advantage in terms of price – it starts at 50300 £ , while the Porsche Cayenne costs 87000 £ . That’s a price difference of around 36673 £.

Fuel consumption also shows a difference: Mercedes GLC manages with 1.60 L and is therefore decisively more efficient than the Porsche Cayenne with 4 L. The difference is about 2.40 L per 100 km.

In terms of energy consumption, the advantage goes to the Mercedes GLC: with 14.90 kWh per 100 km, it’s distinct more efficient than the Porsche Cayenne with 19.70 kWh. That’s a difference of about 4.80 kWh.

As for electric range, the Mercedes GLC performs to a small extent better – achieving 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 has a convincingly edge – offering 1156 HP compared to 680 HP. That’s roughly 476 HP more horsepower.

In acceleration from 0 to 100 km/h, the Porsche Cayenne is evident quicker – completing the sprint in 2.50 s, while the Mercedes GLC takes 3.50 s. That’s about 1 s faster.

In terms of top speed, the Porsche Cayenne performs barely noticeable better – 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: Porsche Cayenne pulls distinct stronger with 1500 Nm compared to 1020 Nm. That’s about 480 Nm difference.

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 curb weight, Mercedes GLC is a bit lighter – 1910 kg compared to 2130 kg. The difference is around 220 kg.

In terms of boot space, the Porsche Cayenne offers distinct more room – 781 L compared to 620 L. That’s a difference of about 161 L.

In maximum load capacity, the Mercedes GLC performs barely noticeable better – up to 1740 L, which is about 32 L more than the Porsche Cayenne.

When it comes to payload, Porsche Cayenne to a small extent takes the win – 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.

Mercedes GLC
Porsche Cayenne

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis
from about £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 - 9.9 L
  • Consumption kWh/100km : 14.9 - 16.6 kWh
  • Electric Range : 12 - 714 km

Mercedes GLC

3.9 (6 Reviews)
rate

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.

details

Porsche Cayenne

1.9 (1 Reviews)
rate

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
Mercedes GLC
Porsche Cayenne

Costs and Consumption

Price
50300 - 126600 £
Price
87000 - 186400 £
Consumption L/100km
1.6 - 9.9 L
Consumption L/100km
4 - 12.2 L
Consumption kWh/100km
14.9 - 16.6 kWh
Consumption kWh/100km
19.7 - 20.6 kWh
Electric Range
12 - 714 km
Electric Range
74 - 642 km
Battery Capacity
94 kWh
Battery Capacity
21.80 kWh
co2
0 - 225 g/km
co2
0 - 277 g/km
Fuel tank capacity
49 - 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
1910 - 2535 kg
Curb weight
2130 - 2720 kg
Trunk capacity
390 - 620 L
Trunk capacity
434 - 781 L
Length
4716 - 4845 mm
Length
4930 mm
Width
1890 - 1913 mm
Width
1980 - 1989 mm
Height
1603 - 1647 mm
Height
1652 - 1698 mm
Max trunk capacity
1335 - 1740 L
Max trunk capacity
1344 - 1708 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 - 1156 HP
Acceleration 0-100km/h
3.5 - 9 s
Acceleration 0-100km/h
2.5 - 6 s
Max Speed
208 - 275 km/h
Max Speed
248 - 305 km/h
Torque
320 - 1020 Nm
Torque
500 - 1500 Nm
Number of Cylinders
4 - 6
Number of Cylinders
6 - 8
Power kW
137 - 500 kW
Power kW
260 - 850 kW
Engine capacity
1991 - 2989 cm3
Engine capacity
2995 - 3996 cm3

General

Model Year
2025 - 2026
Model Year
2025 - 2026
CO2 Efficiency Class
F, G, B, A
CO2 Efficiency Class
G, B, C, A
Brand
Mercedes-Benz
Brand
Porsche
What drive types are available for the Mercedes GLC?

The Mercedes GLC is offered with All-Wheel Drive.

The prices shown are estimates based on German list prices, adjusted for local VAT. Local registration taxes (e.g. NoVA, BPM or CO2 malus) are not included. This information is not legally binding.