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Mercedes AMG GT vs Porsche Cayenne - Differences and prices compared

Compare performance (816 HP vs 739 HP), boot space and price (102500 £ vs 87000 £) at a glance. Find out which car is the better choice for you – Mercedes AMG GT or Porsche Cayenne?

Mercedes AMG GT

Porsche Cayenne

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

AMG GT @ Mercedes-Benz Group Media

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

Porsche Cayenne has a somewhat advantage in terms of price – it starts at 87000 £, while the Mercedes AMG GT costs 102500 £. That’s a price difference of around 15504 £.

Fuel consumption also shows a difference: Porsche Cayenne manages with 4 L and is therefore convincingly more efficient than the Mercedes AMG GT with 10.30 L. The difference is about 6.30 L per 100 km.

As for range, the Porsche Cayenne performs decisively better – achieving up to 83 km, about 72 km more than the Mercedes AMG GT.

Cayenne @ Dr. Ing. h.c. F. Porsche AG

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 Mercedes AMG GT has a slight edge – offering 816 HP compared to 739 HP. That’s roughly 77 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mercedes AMG GT is clearly perceptible quicker – completing the sprint in 2.80 s, while the Porsche Cayenne takes 3.60 s. That’s about 0.80 s faster.

In terms of top speed, the Mercedes AMG GT performs minimal better – reaching 320 km/h, while the Porsche Cayenne tops out at 305 km/h. The difference is around 15 km/h.

There’s also a difference in torque: Mercedes AMG GT pulls clearly perceptible stronger with 1420 Nm compared to 950 Nm. That’s about 470 Nm difference.

AMG GT @ Mercedes-Benz Group Media

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: Porsche Cayenne offers clearly more seating capacity – 5 vs 2.

In curb weight, Mercedes AMG GT is slightly lighter – 1790 kg compared to 2130 kg. The difference is around 340 kg.

In terms of boot space, the Porsche Cayenne offers decisively more room – 772 L compared to 321 L. That’s a difference of about 451 L.

When it comes to payload, Porsche Cayenne convincingly takes the win – 705 kg compared to 215 kg. That’s a difference of about 490 kg.

Who wins the race?

The Porsche Cayenne proves to be leaves the rival little chance and therefore becomes our DriveDuel Champion!
Porsche Cayenne is the better all-rounder in this comparison.

from about £87,000
Cayenne @ Dr. Ing. h.c. F. Porsche AG

Porsche Cayenne

  • Engine Type : Petrol, Plugin Hybrid
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 353 - 739 HP
  • Consumption L/100km : 4 - 12.2 L
  • Electric Range : 74 - 83 km
details
Mercedes AMG GT
Porsche Cayenne

Costs and Consumption
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Engine and Performance
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Dimensions and Body
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Mercedes AMG GT

The Mercedes-AMG GT is a theatrical sports car with prowling looks and an aggressive exhaust note that announces its intentions the moment it fires up. It pairs ferocious performance with surprising everyday usability — a taut yet forgiving chassis and a cockpit that feels special — making sensible buyers suddenly very good at justifying indulgence.

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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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Reviews Mercedes AMG GT

Reviews Porsche Cayenne

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AMG GT @ Mercedes-Benz Group Media
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Costs and Consumption
Price
102500 - 194400 £
Price
87000 - 186400 £
Consumption L/100km
10.3 - 14 L
Consumption L/100km
4 - 12.2 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
11 km
Electric Range
74 - 83 km
Battery Capacity
-
Battery Capacity
21.80 kWh
co2
235 - 319 g/km
co2
90 - 277 g/km
Fuel tank capacity
70 L
Fuel tank capacity
70 - 90 L

Dimensions and Body
Body Type
Coupe
Body Type
SUV
Seats
2
Seats
4 - 5
Doors
2
Doors
5
Curb weight
1790 - 2195 kg
Curb weight
2130 - 2670 kg
Trunk capacity
182 - 321 L
Trunk capacity
434 - 772 L
Length
4728 mm
Length
4930 mm
Width
1929 mm
Width
1983 - 1989 mm
Height
1354 - 1359 mm
Height
1652 - 1698 mm
Max trunk capacity
-
Max trunk capacity
1344 - 1708 L
Payload
170 - 215 kg
Payload
365 - 705 kg

Engine and Performance
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid
Engine Type
Petrol, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
435 - 816 HP
Power HP
353 - 739 HP
Acceleration 0-100km/h
2.8 - 4.6 s
Acceleration 0-100km/h
3.6 - 6 s
Max Speed
280 - 320 km/h
Max Speed
248 - 305 km/h
Torque
500 - 1420 Nm
Torque
500 - 950 Nm
Number of Cylinders
4 - 8
Number of Cylinders
6 - 8
Power kW
320 - 600 kW
Power kW
260 - 544 kW
Engine capacity
1991 - 3982 cm3
Engine capacity
2995 - 3996 cm3

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
G
CO2 Efficiency Class
G, B, C
Brand
Mercedes-Benz
Brand
Porsche

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Is the Mercedes AMG GT offered with different drivetrains?

The Mercedes AMG GT is available as Rear-Wheel Drive or All-Wheel Drive.

The prices and data displayed are estimates based on German list prices and may vary by country. This information is not legally binding.