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Mercedes AMG GT vs Porsche 911 Convertible - Differences and prices compared
Compare performance (816 HP vs 711 HP), boot space and price (102500 £ vs 122400 £ ) at a glance. Find out which car is the better choice for you – Mercedes AMG GT or Porsche 911 Convertible?
AMG GT
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 AMG GT has a slightly advantage in terms of price – it starts at 102500 £ , while the Porsche 911 Convertible costs 122400 £ . That’s a price difference of around 19896 £.
Both cars consume an average of 10.30 L per 100 km – no difference here.
AMG GT
Engine and Performance:
Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.
When it comes to engine power, the Mercedes AMG GT has a somewhat edge – offering 816 HP compared to 711 HP. That’s roughly 105 HP more horsepower.
In acceleration from 0 to 100 km/h, the Porsche 911 Convertible is barely noticeable quicker – completing the sprint in 2.60 s, while the Mercedes AMG GT takes 2.80 s. That’s about 0.20 s faster.
In terms of top speed, the Porsche 911 Convertible performs barely noticeable better – reaching 322 km/h, while the Mercedes AMG GT tops out at 320 km/h. The difference is around 2 km/h.
There’s also a difference in torque: Mercedes AMG GT pulls clearly stronger with 1420 Nm compared to 800 Nm. That’s about 620 Nm difference.
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AMG GT
Space and Everyday Use:
Whether family car or daily driver – which one offers more room, flexibility and comfort?
Seats: Porsche 911 Convertible offers significantly more seating capacity – 4 vs 2.
In curb weight, Porsche 911 Convertible is barely noticeable lighter – 1655 kg compared to 1790 kg. The difference is around 135 kg.
In terms of boot space, the Mercedes AMG GT offers significantly more room – 321 L compared to 163 L. That’s a difference of about 158 L.
When it comes to payload, Porsche 911 Convertible noticeable takes the win – 345 kg compared to 215 kg. That’s a difference of about 130 kg.
Who wins the race in the data check?
The Mercedes AMG GT sits well ahead of its rival 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 AMG GT
Porsche 911 Convertible
Costs and Consumption
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Engine and Performance
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Dimensions and Body
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from about £102,500
Mercedes AMG GT
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.
details
Porsche 911 Convertible
The Porsche 911 Cabriolet transforms the iconic silhouette into an open‑air weapon, offering roof-down glamour and razor-sharp handling that still feels perfectly composed on normal roads. It’s the kind of car that serves daily duties with surprising ease while delivering intoxicating engine music and a grin factor that makes every trip feel like a small victory.
details
Mercedes AMG GT
Porsche 911 Convertible
Costs and Consumption |
|
|---|---|
|
Price
102500 - 194400 £
|
Price
122400 - 244500 £
|
|
Consumption L/100km
10.3 - 14 L
|
Consumption L/100km
10.3 - 11.7 L
|
|
Consumption kWh/100km
-
|
Consumption kWh/100km
-
|
|
Electric Range
11 km
|
Electric Range
-
|
|
Battery Capacity
-
|
Battery Capacity
-
|
|
co2
235 - 319 g/km
|
co2
234 - 265 g/km
|
|
Fuel tank capacity
70 L
|
Fuel tank capacity
63 L
|
Dimensions and Body |
|
|---|---|
|
Body Type
Coupe
|
Body Type
Convertible
|
|
Seats
2
|
Seats
4
|
|
Doors
2
|
Doors
2
|
|
Curb weight
1790 - 2195 kg
|
Curb weight
1655 - 1900 kg
|
|
Trunk capacity
182 - 321 L
|
Trunk capacity
163 L
|
|
Length
4728 mm
|
Length
4542 - 4553 mm
|
|
Width
1929 mm
|
Width
1852 - 1900 mm
|
|
Height
1354 - 1359 mm
|
Height
1292 - 1302 mm
|
|
Max trunk capacity
-
|
Max trunk capacity
-
|
|
Payload
170 - 215 kg
|
Payload
275 - 345 kg
|
Engine and Performance |
|
|---|---|
|
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid
|
Engine Type
Petrol, Full Hybrid
|
|
Transmission
Automatic
|
Transmission
Automatic, Manuel
|
|
Transmission Detail
Automatic Gearbox
|
Transmission Detail
Dual-Clutch Automatic, Manual Gearbox
|
|
Drive Type
Rear-Wheel Drive, All-Wheel Drive
|
Drive Type
Rear-Wheel Drive, All-Wheel Drive
|
|
Power HP
435 - 816 HP
|
Power HP
394 - 711 HP
|
|
Acceleration 0-100km/h
2.8 - 4.6 s
|
Acceleration 0-100km/h
2.6 - 4.7 s
|
|
Max Speed
280 - 320 km/h
|
Max Speed
291 - 322 km/h
|
|
Torque
500 - 1420 Nm
|
Torque
450 - 800 Nm
|
|
Number of Cylinders
4 - 8
|
Number of Cylinders
6
|
|
Power kW
320 - 600 kW
|
Power kW
290 - 523 kW
|
|
Engine capacity
1991 - 3982 cm3
|
Engine capacity
2981 - 3591 cm3
|
General |
|
|---|---|
|
Model Year
2025
|
Model Year
2024 - 2026
|
|
CO2 Efficiency Class
G
|
CO2 Efficiency Class
G
|
|
Brand
Mercedes-Benz
|
Brand
Porsche
|
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 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.