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BMW 8 Series Convertible vs Mercedes AMG GT comparison

Compare performance (625 HP vs 816 HP), boot space and price (99,400 £ vs 102,500 £ ) at a glance. Find out which car is the better choice for you – BMW 8 Series Convertible or Mercedes AMG GT?

BMW 8 Series Convertible vs Mercedes AMG GT: Key differences

BMW 8 Series Convertible

  • marginally cheaper
  • clearly more efficient
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Mercedes AMG GT

  • markedly more power
  • slightly quicker 0–100 km/h
  • very slightly lighter
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By Achim Sedelmaier

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

8 Series Convertible

Costs and Efficiency:

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

BMW 8 Series Convertible is marginally cheaper – starting at 99,400 £ , while the Mercedes AMG GT costs 102,500 £ . That’s a price difference of around 3,076 £.

Fuel consumption also shows a difference: the BMW 8 Series Convertible uses 6.9 L/100km and is clearly more efficient than the Mercedes AMG GT with 10.3 L/100km. The difference is about 3.4 L/100km.

AMG GT

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 Mercedes AMG GT offers markedly more power – delivering 816 HP compared to 625 HP. That’s roughly 191 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes AMG GT is slightly quicker – completing the sprint in 2.8 s, while the BMW 8 Series Convertible takes 3.3 s. That’s about 0.5 s quicker.

There’s also a difference in torque: the Mercedes AMG GT delivers considerably more torque with 1,420 Nm compared to 750 Nm. That’s about 670 Nm more.

8 Series Convertible

Space and Everyday Use:

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

Seats: BMW 8 Series Convertible offers more seats – 4 vs 2.

In terms of curb weight, Mercedes AMG GT is very slightly lighter – 1,790 kg compared to 1,915 kg. The difference is around 125 kg.

When it comes to payload, the BMW 8 Series Convertible carries clearly more – 425 kg compared to 215 kg. That’s a difference of about 210 kg.

Who wins the race in the data check?

The BMW 8 Series Convertible is decisively ahead 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 £99,400
8 Series Convertible

BMW 8 Series Convertible

  • Engine Type : Diesel MHEV, Petrol
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive, Rear-Wheel Drive
  • Power HP : 333 - 625 HP
  • Consumption L/100km : 6.9 - 11.2 L/100km
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Frequently compared as well

BMW 8 Series Convertible
Hyundai i30
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Mercedes AMG GT
Mercedes SL Class
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BMW 8 Series Convertible
Mercedes AMG GT

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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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Reviews BMW 8 Series Convertible

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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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Reviews Mercedes AMG GT

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Mercedes AMG GT
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BMW 8 Series Convertible
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BMW 8 Series Convertible
Mercedes AMG GT

Costs and Consumption
Price
99,400 - 165,800 £
Price
102,500 - 194,400 £
Consumption L/100km
6.9 - 11.2 L/100km
Consumption L/100km
10.3 - 14 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
11 km
Battery Capacity
-
Battery Capacity
-
co2
180 - 255 g/km
co2
235 - 319 g/km
Fuel tank capacity
66 - 68 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Convertible
Body Type
Coupe
Seats
4
Seats
2
Doors
2
Doors
-
Curb weight
1,915 - 2,125 kg
Curb weight
1,790 - 2,195 kg
Trunk capacity
350 L
Trunk capacity
-
Length
4,851 - 4,867 mm
Length
-
Width
1,902 - 1,907 mm
Width
1,929 mm
Height
1,345 - 1,353 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
340 - 425 kg
Payload
170 - 215 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
Rear-Wheel Drive, All-Wheel Drive
Power HP
333 - 625 HP
Power HP
435 - 816 HP
Acceleration 0-100km/h
3.3 - 5.5 s
Acceleration 0-100km/h
2.8 - 4.6 s
Max Speed
250 km/h
Max Speed
-
Torque
500 - 750 Nm
Torque
500 - 1,420 Nm
Number of Cylinders
6 - 8
Number of Cylinders
4 - 8
Power kW
245 - 460 kW
Power kW
320 - 600 kW
Engine capacity
2,993 - 4,395 cm3
Engine capacity
1,991 - 3,982 cm3

General
Model Year
2024
Model Year
2025
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.