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BMW X5 vs BMW 8 Series Convertible comparison

Compare performance (625 HP vs 625 HP), boot space and price (77,100 £ vs 99,400 £ ) at a glance. Find out which car is the better choice for you – BMW X5 or BMW 8 Series Convertible?

BMW X5 vs BMW 8 Series Convertible: Key differences

BMW X5

  • markedly cheaper
  • significantly more efficient
  • significantly more trunk space

BMW 8 Series Convertible

  • a bit quicker 0–100 km/h
  • moderately lighter

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

X5

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.

BMW X5 is markedly cheaper – starting at 77,100 £ , while the BMW 8 Series Convertible costs 99,400 £ . That’s a price difference of around 22,371 £.

Fuel consumption also shows a difference: the BMW X5 uses 3 L/100km and is significantly more efficient than the BMW 8 Series Convertible with 6.9 L/100km. The difference is about 3.9 L/100km.

8 Series Convertible

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.

Both models deliver identical power – 625 HP each.

When accelerating from 0 to 100 km/h, the BMW 8 Series Convertible is a bit quicker – completing the sprint in 3.3 s, while the BMW X5 takes 3.9 s. That’s about 0.6 s quicker.

There’s no difference in top speed – both reach 250 km/h.

Both models offer the same torque – 750 Nm.

X5

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: BMW X5 offers more seats – 5 vs 4.

In terms of curb weight, BMW 8 Series Convertible is moderately lighter – 1,915 kg compared to 2,240 kg. The difference is around 325 kg.

Looking at boot space, the BMW X5 offers significantly more boot space – 650 L compared to 350 L. That’s a difference of about 300 L.

When it comes to payload, the BMW X5 carries visibly more – 705 kg compared to 425 kg. That’s a difference of about 280 kg.

Who wins the race in the data check?

The BMW X5 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 £77,100
X5

BMW X5

  • Engine Type : Petrol MHEV, Diesel MHEV, Plugin Hybrid
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 298 - 625 HP
  • Consumption L/100km : 3 - 12.8 L/100km
  • Electric Range : 105 km
details

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View detailed analysis

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View detailed analysis

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BMW X5

The BMW X5 blends athletic handling with a roomy, premium interior, feeling equally at home on twisty country roads and the school-run car park. Its executive-lounge cabin and confident road presence make it a tempting choice for buyers who want comfort, capability and just a little bit of bragging rights.

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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 8 Series Convertible

Costs and Consumption
Price
77,100 - 143,500 £
Price
99,400 - 165,800 £
Consumption L/100km
3 - 12.8 L/100km
Consumption L/100km
6.9 - 11.2 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
105 km
Electric Range
-
Battery Capacity
25.7 kWh
Battery Capacity
-
co2
68 - 289 g/km
co2
180 - 255 g/km
Fuel tank capacity
69 - 83 L
Fuel tank capacity
66 - 68 L

Dimensions and Body
Body Type
SUV
Body Type
Convertible
Seats
5
Seats
4
Doors
5
Doors
2
Curb weight
2,240 - 2,495 kg
Curb weight
1,915 - 2,125 kg
Trunk capacity
500 - 650 L
Trunk capacity
350 L
Length
4,935 mm
Length
4,851 - 4,867 mm
Width
2,004 - 2,015 mm
Width
1,902 - 1,907 mm
Height
1,755 - 1,765 mm
Height
1,345 - 1,353 mm
Max trunk capacity
1,720 - 1,870 L
Max trunk capacity
-
Payload
565 - 705 kg
Payload
340 - 425 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV, Plugin Hybrid
Engine Type
Diesel MHEV, Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Power HP
298 - 625 HP
Power HP
333 - 625 HP
Acceleration 0-100km/h
3.9 - 6.1 s
Acceleration 0-100km/h
3.3 - 5.5 s
Max Speed
250 km/h
Max Speed
250 km/h
Torque
540 - 750 Nm
Torque
500 - 750 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6 - 8
Power kW
219 - 460 kW
Power kW
245 - 460 kW
Engine capacity
2,993 - 4,395 cm3
Engine capacity
2,993 - 4,395 cm3

General
Model Year
2,025
Model Year
2,024
CO2 Efficiency Class
G, B
CO2 Efficiency Class
G
Brand
BMW
Brand
BMW
What drive types are available for the BMW X5?

The BMW X5 is available as All-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.