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BMW 8 Series Convertible vs Mercedes AMG GT 4-Door Coupé comparison

Compare performance (625 HP vs 843 HP), boot space and price (99,400 £ vs 97,200 £ ) at a glance. Find out which car is the better choice for you – BMW 8 Series Convertible or Mercedes AMG GT 4-Door Coupé?

BMW 8 Series Convertible vs Mercedes AMG GT 4-Door Coupé: Key differences

BMW 8 Series Convertible

  • markedly more efficient
  • barely lighter

Mercedes AMG GT 4-Door Coupé

  • very slightly cheaper
  • visibly more power
  • somewhat quicker 0–100 km/h
  • markedly more trunk space

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

8 Series Convertible

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

Mercedes AMG GT 4-Door Coupé is very slightly cheaper – starting at 97,200 £ , while the BMW 8 Series Convertible costs 99,400 £ . That’s a price difference of around 2,217 £.

Fuel consumption also shows a difference: the BMW 8 Series Convertible uses 6.9 L/100km and is markedly more efficient than the Mercedes AMG GT 4-Door Coupé with 9.5 L/100km. The difference is about 2.6 L/100km.

AMG GT 4-Door Coupé

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 4-Door Coupé offers visibly more power – delivering 843 HP compared to 625 HP. That’s roughly 218 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes AMG GT 4-Door Coupé is somewhat quicker – completing the sprint in 2.9 s, while the BMW 8 Series Convertible takes 3.3 s. That’s about 0.4 s quicker.

Looking at top speed, the Mercedes AMG GT 4-Door Coupé is visibly faster – reaching 316 km/h, while the BMW 8 Series Convertible tops out at 250 km/h. The difference is around 66 km/h.

There’s also a difference in torque: the Mercedes AMG GT 4-Door Coupé delivers substantially more torque with 1,470 Nm compared to 750 Nm. That’s about 720 Nm more.

8 Series Convertible

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Both vehicles offer seating for 4 people.

In terms of curb weight, BMW 8 Series Convertible is barely lighter – 1,915 kg compared to 2,040 kg. The difference is around 125 kg.

Looking at boot space, the Mercedes AMG GT 4-Door Coupé offers markedly more boot space – 461 L compared to 350 L. That’s a difference of about 111 L.

When it comes to payload, the Mercedes AMG GT 4-Door Coupé carries a bit more – 510 kg compared to 425 kg. That’s a difference of about 85 kg.

Who wins the race in the data check?

The Mercedes AMG GT 4-Door Coupé stands 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.

from £97,200
AMG GT 4-Door Coupé

Mercedes AMG GT 4-Door Coupé

  • Engine Type : Petrol MHEV, Petrol, Plugin Hybrid
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 389 - 843 HP
  • Consumption L/100km : 9.5 - 12.7 L/100km
  • Electric Range : 11 km
details

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BMW 8 Series Convertible

The BMW 8 Series Convertible is a head-turning grand tourer that drops its roof with the kind of theatrical flourish you expect from a modern Bavarian showboat. It wraps occupants in sumptuous materials and driver-focused polish, offering effortless long-distance comfort and just enough drama to make every arrival feel like an occasion.

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Mercedes AMG GT 4-Door Coupé

The Mercedes-AMG GT 4-Door Coupé transforms AMG's sports-car attitude into a surprisingly practical four-door package, pairing dramatic coupe looks with an interior that's both luxurious and genuinely usable. It's the choice for buyers who want supercar charisma without losing daily comfort — dramatic presence, a rorty soundtrack, and a chassis that turns routine drives into something worth smiling about.

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Mercedes AMG GT 4-Door Coupé

Costs and Consumption
Price
99,400 - 165,800 £
Price
97,200 - 182,100 £
Consumption L/100km
6.9 - 11.2 L/100km
Consumption L/100km
9.5 - 12.7 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
11 km
Battery Capacity
-
Battery Capacity
-
co2
180 - 255 g/km
co2
215 - 287 g/km
Fuel tank capacity
66 - 68 L
Fuel tank capacity
73 - 80 L

Dimensions and Body
Body Type
Convertible
Body Type
Coupe
Seats
4
Seats
4
Doors
2
Doors
5
Curb weight
1,915 - 2,125 kg
Curb weight
2,040 - 2,380 kg
Trunk capacity
350 L
Trunk capacity
335 - 461 L
Length
4,851 - 4,867 mm
Length
5,054 mm
Width
1,902 - 1,907 mm
Width
1,953 mm
Height
1,345 - 1,353 mm
Height
1,447 - 1,455 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
340 - 425 kg
Payload
380 - 510 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
333 - 625 HP
Power HP
389 - 843 HP
Acceleration 0-100km/h
3.3 - 5.5 s
Acceleration 0-100km/h
2.9 - 4.9 s
Max Speed
250 km/h
Max Speed
270 - 316 km/h
Torque
500 - 750 Nm
Torque
500 - 1,470 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6 - 8
Power kW
245 - 460 kW
Power kW
286 - 620 kW
Engine capacity
2,993 - 4,395 cm3
Engine capacity
2,999 - 3,982 cm3

General
Model Year
2,024
Model Year
2,025
CO2 Efficiency Class
G
CO2 Efficiency Class
G
Brand
BMW
Brand
Mercedes-Benz
What drivetrain options does the BMW 8 Series Convertible have?

Available configurations include All-Wheel Drive or Rear-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.