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BMW 4 Series Gran Coupe vs BMW 8 Series Convertible comparison

Compare performance (392 HP vs 625 HP), boot space and price (46,200 £ vs 99,400 £ ) at a glance. Find out which car is the better choice for you – BMW 4 Series Gran Coupe or BMW 8 Series Convertible?

BMW 4 Series Gran Coupe vs BMW 8 Series Convertible: Key differences

BMW 4 Series Gran Coupe

  • significantly cheaper
  • noticeably more efficient
  • moderately lighter
  • noticeably more trunk space
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BMW 8 Series Convertible

  • clearly more power
  • clearly quicker 0–100 km/h
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By Achim Sedelmaier

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

4 Series Gran Coupe

Costs and Efficiency:

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

BMW 4 Series Gran Coupe is significantly cheaper – starting at 46,200 £ , while the BMW 8 Series Convertible costs 99,400 £ . That’s a price difference of around 53,228 £.

Fuel consumption also shows a difference: the BMW 4 Series Gran Coupe uses 5 L/100km and is noticeably more efficient than the BMW 8 Series Convertible with 6.9 L/100km. The difference is about 1.9 L/100km.

8 Series Convertible

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 BMW 8 Series Convertible offers clearly more power – delivering 625 HP compared to 392 HP. That’s roughly 233 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW 8 Series Convertible is clearly quicker – completing the sprint in 3.3 s, while the BMW 4 Series Gran Coupe takes 4.6 s. That’s about 1.3 s quicker.

There’s also a difference in torque: the BMW 8 Series Convertible delivers moderately more torque with 750 Nm compared to 650 Nm. That’s about 100 Nm more.

4 Series Gran Coupe

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Seats: BMW 4 Series Gran Coupe offers more seats – 5 vs 4.

In terms of curb weight, BMW 4 Series Gran Coupe is moderately lighter – 1,695 kg compared to 1,915 kg. The difference is around 220 kg.

Looking at boot space, the BMW 4 Series Gran Coupe offers noticeably more boot space – 470 L compared to 350 L. That’s a difference of about 120 L.

When it comes to payload, the BMW 4 Series Gran Coupe carries a bit more – 480 kg compared to 425 kg. That’s a difference of about 55 kg.

Who wins the race in the data check?

The BMW 4 Series Gran Coupe 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 £46,200
4 Series Gran Coupe

BMW 4 Series Gran Coupe

  • Engine Type Diesel MHEV, Petrol, Petrol MHEV
  • Transmission Automatic
  • Drive Type All-Wheel Drive, Rear-Wheel Drive
  • Power HP 184 - 392 HP
  • Consumption L/100km 5 - 7.8 L/100km
BMW 4 Series Gran Coupe
BMW 8 Series Convertible

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

BMW 4 Series Gran Coupe

The BMW 4 Series Gran Coupe marries coupe-like drama with hatchback practicality, offering a sloping roofline that still lets you load bags without a wrestling match. It steers with familiar BMW poise, so buyers after sporty looks and everyday usability get the best of both worlds—and a car that makes the commute feel a bit more glamorous.

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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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BMW 4 Series Gran Coupe
BMW 8 Series Convertible

Costs and Consumption

Price
46,200 - 68,800 £
Price
99,400 - 165,800 £
Consumption L/100km
5 - 7.8 L/100km
Consumption L/100km
6.9 - 11.2 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
131 - 179 g/km
co2
180 - 255 g/km
Fuel tank capacity
-
Fuel tank capacity
66 - 68 L

Dimensions and Body

Body Type
Hatchback
Body Type
Convertible
Seats
5
Seats
4
Doors
-
Doors
2
Curb weight
1,695 - 1,935 kg
Curb weight
1,915 - 2,125 kg
Trunk capacity
470 L
Trunk capacity
350 L
Length
-
Length
4,851 - 4,867 mm
Width
1,852 mm
Width
1,902 - 1,907 mm
Height
-
Height
1,345 - 1,353 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
480 kg
Payload
340 - 425 kg

Engine and Performance

Engine Type
Diesel MHEV, Petrol, Petrol MHEV
Engine Type
Diesel MHEV, Petrol
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, Rear-Wheel Drive
Power HP
184 - 392 HP
Power HP
333 - 625 HP
Acceleration 0-100km/h
4.6 - 7.9 s
Acceleration 0-100km/h
3.3 - 5.5 s
Max Speed
-
Max Speed
250 km/h
Torque
300 - 650 Nm
Torque
500 - 750 Nm
Number of Cylinders
4 - 6
Number of Cylinders
6 - 8
Power kW
135 - 288 kW
Power kW
245 - 460 kW
Engine capacity
1,995 - 2,998 cm3
Engine capacity
2,993 - 4,395 cm3

General

Model Year
2,024 - 2,025
Model Year
2024
CO2 Efficiency Class
E, D, F, G
CO2 Efficiency Class
G
Brand
BMW
Brand
BMW
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.