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Mercedes GLB vs Porsche Cayenne comparison
Compare performance (354 HP vs 1,156 HP), boot space and price (43,200 £ vs 90,200 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLB or Porsche Cayenne?
Mercedes GLB vs Porsche Cayenne: Key differences
All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.
GLB
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 GLB is considerably cheaper – starting at 43,200 £ , while the Porsche Cayenne costs 90,200 £ . That’s a price difference of around 46,974 £.
Fuel consumption also shows a difference: the Porsche Cayenne uses 4 L/100km and is clearly more efficient than the Mercedes GLB with 5.7 L/100km. The difference is about 1.7 L/100km.
In terms of energy consumption, the Mercedes GLB is clearly more efficient: consuming 15.4 kWh/100km compared to 18.9 kWh/100km for the Porsche Cayenne. That’s a difference of about 3.5 kWh/100km.
As for electric range, the Porsche Cayenne offers only slightly more range – reaching up to 668 km, about 37 km more than the Mercedes GLB.
Cayenne
Engine and Performance:
Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.
When it comes to engine power, the Porsche Cayenne offers considerably more power – delivering 1,156 HP compared to 354 HP. That’s roughly 802 HP more horsepower.
When accelerating from 0 to 100 km/h, the Porsche Cayenne is substantially quicker – completing the sprint in 2.5 s, while the Mercedes GLB takes 5.5 s. That’s about 3 s quicker.
There’s also a difference in torque: the Porsche Cayenne delivers clearly more torque with 1,500 Nm compared to 515 Nm. That’s about 985 Nm more.
GLB
Space and Everyday Use:
Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.
Both vehicles offer seating for 5 people.
In terms of curb weight, Mercedes GLB is a bit lighter – 1,840 kg compared to 2,130 kg. The difference is around 290 kg.
Looking at boot space, the Porsche Cayenne offers visibly more boot space – 781 L compared to 540 L. That’s a difference of about 241 L.
When it comes to payload, the Porsche Cayenne carries clearly more – 705 kg compared to 505 kg. That’s a difference of about 200 kg.
Who wins the race in the data check?
The Porsche Cayenne 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 £90,200
Porsche Cayenne
Mercedes GLB
Porsche Cayenne
Costs and Consumption
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Engine and Performance
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Dimensions and Body
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Mercedes GLB
The Mercedes GLB is a compact luxury SUV that blends smart packaging with a polished, composed driving experience. Its flexible interior and premium feel make it a sensible pick for buyers who want Mercedes comfort and practicality in a smaller footprint.
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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.
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Mercedes GLB
Porsche Cayenne
Costs and Consumption |
|
|---|---|
|
Price
43,200 - 62,400 £
|
Price
90,200 - 144,400 £
|
|
Consumption L/100km
5.7 - 6.1 L/100km
|
Consumption L/100km
4 - 11 L/100km
|
|
Consumption kWh/100km
15.4 - 15.9 kWh/100km
|
Consumption kWh/100km
18.9 - 20.6 kWh/100km
|
|
Electric Range
431 - 631 km
|
Electric Range
74 - 668 km
|
|
Battery Capacity
-
|
Battery Capacity
-
|
|
co2
0 - 138 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
1,840 - 2,280 kg
|
Curb weight
2,130 - 2,725 kg
|
|
Trunk capacity
540 L
|
Trunk capacity
434 - 781 L
|
|
Length
-
|
Length
-
|
|
Width
1,861 mm
|
Width
1,980 - 1,983 mm
|
|
Height
-
|
Height
-
|
|
Max trunk capacity
-
|
Max trunk capacity
-
|
|
Payload
485 - 505 kg
|
Payload
525 - 705 kg
|
Engine and Performance |
|
|---|---|
|
Engine Type
Electric, Full Hybrid
|
Engine Type
Petrol, Plugin Hybrid, Electric
|
|
Transmission
Automatic
|
Transmission
Automatic
|
|
Transmission Detail
Reduction Gearbox
|
Transmission Detail
Automatic Gearbox, Reduction Gearbox
|
|
Drive Type
Rear-Wheel Drive, All-Wheel Drive
|
Drive Type
All-Wheel Drive
|
|
Power HP
156 - 354 HP
|
Power HP
353 - 1,156 HP
|
|
Acceleration 0-100km/h
5.5 - 9.7 s
|
Acceleration 0-100km/h
2.5 - 6 s
|
|
Max Speed
-
|
Max Speed
-
|
|
Torque
280 - 515 Nm
|
Torque
500 - 1,500 Nm
|
|
Number of Cylinders
4
|
Number of Cylinders
6
|
|
Power kW
115 - 260 kW
|
Power kW
260 - 850 kW
|
|
Engine capacity
1,499 cm3
|
Engine capacity
2,995 cm3
|
General |
|
|---|---|
|
Model Year
2026
|
Model Year
2,025 - 2,026
|
|
CO2 Efficiency Class
A, D, E
|
CO2 Efficiency Class
G, B, A
|
|
Brand
Mercedes-Benz
|
Brand
Porsche
|
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.