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Mercedes GLA vs Porsche Panamera comparison

Compare performance (421 HP vs 782 HP), boot space and price (38,800 £ vs 99,800 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLA or Porsche Panamera?

Mercedes GLA vs Porsche Panamera: Key differences

Mercedes GLA

4.5 (4 Reviews)
rate
  • clearly cheaper
  • only slightly more efficient
  • noticeably lighter
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Porsche Panamera

  • considerably more power
  • clearly more electric range
  • considerably quicker 0–100 km/h
  • somewhat 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

GLA

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Mercedes GLA is clearly cheaper – starting at 38,800 £ , while the Porsche Panamera costs 99,800 £ . That’s a price difference of around 60,935 £.

Fuel consumption also shows a difference: the Mercedes GLA uses 2.9 L/100km and is only slightly more efficient than the Porsche Panamera with 3 L/100km. The difference is about 0.1 L/100km.

As for electric range, the Porsche Panamera offers clearly more range – reaching up to 97 km, about 23 km more than the Mercedes GLA.

Panamera

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 Panamera offers considerably more power – delivering 782 HP compared to 421 HP. That’s roughly 361 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche Panamera is considerably quicker – completing the sprint in 2.9 s, while the Mercedes GLA takes 4.3 s. That’s about 1.4 s quicker.

There’s also a difference in torque: the Porsche Panamera delivers substantially more torque with 1,000 Nm compared to 500 Nm. That’s about 500 Nm more.

GLA

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Seats: Mercedes GLA offers more seats – 5 vs 4.

In terms of curb weight, Mercedes GLA is noticeably lighter – 1,570 kg compared to 1,960 kg. The difference is around 390 kg.

Looking at boot space, the Porsche Panamera offers somewhat more boot space – 494 L compared to 435 L. That’s a difference of about 59 L.

When it comes to payload, the Porsche Panamera carries marginally more – 545 kg compared to 500 kg. That’s a difference of about 45 kg.

Who wins the race in the data check?

The Porsche Panamera 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 £99,800
Panamera

Porsche Panamera

  • Engine Type : Petrol, Plugin Hybrid
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 353 - 782 HP
  • Consumption L/100km : 3 - 12 L/100km
  • Electric Range : 83 - 97 km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes GLA

The Mercedes GLA blends Mercedes style with compact crossover practicality, looking sharper than its size suggests while still feeling purposeful around town. Inside it serves up premium materials and tech-forward ergonomics, and the composed ride makes it an appealing pick for buyers who want luxury wrapped in a city-friendly package with a wink of adventurous spirit.

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Reviews Mercedes GLA

4.5 (4 Reviews)
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Lucien
1 May 2026, 07:12:24

GLA 180 petrol. Ideal for city and highway. Very smooth and quiet. The automatic gearbox is a delight. Average consumption 6.2 L/100 km. Special edition 180 Cyber Edition, leather seats....

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Gutter
24 Feb 2026, 21:53:27

Super nimble, very impressive power from this 1,300cc mild‑hybrid engine — in town, on the road and on the motorway for this 2025 GLA 180 Style AMG... premium interior!

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Serge
16 Jan 2026, 16:09:11

You have to compare like with like — the GLA should be compared to the Q3, not the Q2 as in your study!

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

Porsche Panamera

The Porsche Panamera blends sports-car sharpness with luxury-sedan refinement, serving driving thrills up front while pampering passengers in the back. Poised, polished and mischievously quick, it’s the car for buyers who want exotic performance without losing everyday comfort.

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Reviews Porsche Panamera

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

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Porsche Panamera

Costs and Consumption
Price
38,800 - 75,300 £
Price
99,800 - 212,100 £
Consumption L/100km
2.9 - 9.5 L/100km
Consumption L/100km
3 - 12 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
74 km
Electric Range
83 - 97 km
Battery Capacity
-
Battery Capacity
21.8 kWh
co2
66 - 216 g/km
co2
69 - 274 g/km
Fuel tank capacity
-
Fuel tank capacity
75 - 90 L

Dimensions and Body
Body Type
SUV
Body Type
Hatchback
Seats
5
Seats
4
Doors
-
Doors
5
Curb weight
1,570 - 1,810 kg
Curb weight
1,960 - 2,535 kg
Trunk capacity
385 - 435 L
Trunk capacity
421 - 494 L
Length
-
Length
5,052 - 5,204 mm
Width
1,834 - 1,849 mm
Width
1,937 mm
Height
-
Height
1,415 - 1,428 mm
Max trunk capacity
-
Max trunk capacity
1,255 - 1,385 L
Payload
480 - 500 kg
Payload
340 - 545 kg

Engine and Performance
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel, Petrol
Engine Type
Petrol, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Dual-Clutch Automatic
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
116 - 421 HP
Power HP
353 - 782 HP
Acceleration 0-100km/h
4.3 - 11 s
Acceleration 0-100km/h
2.9 - 5.3 s
Max Speed
-
Max Speed
270 - 325 km/h
Torque
230 - 500 Nm
Torque
500 - 1,000 Nm
Number of Cylinders
4
Number of Cylinders
6 - 8
Power kW
85 - 310 kW
Power kW
260 - 575 kW
Engine capacity
1,332 - 1,991 cm3
Engine capacity
2,894 - 3,996 cm3

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
E, F, B, G
CO2 Efficiency Class
G, B, C
Brand
Mercedes-Benz
Brand
Porsche
Is the Mercedes GLA offered with different drivetrains?

The Mercedes GLA is available as Front-Wheel Drive or 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.