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BMW 8 Series Convertible vs SEAT Ibiza comparison

Compare performance (625 HP vs 150 HP), boot space and price (99,400 £ vs 16,800 £ ) at a glance. Find out which car is the better choice for you – BMW 8 Series Convertible or SEAT Ibiza?

BMW 8 Series Convertible vs SEAT Ibiza: Key differences

BMW 8 Series Convertible

  • clearly more power
  • substantially quicker 0–100 km/h
details

SEAT Ibiza

4.1 (1 Reviews)
rate
  • clearly cheaper
  • noticeably more efficient
  • substantially lighter
  • only slightly more trunk space
details

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

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.

SEAT Ibiza is clearly cheaper – starting at 16,800 £ , while the BMW 8 Series Convertible costs 99,400 £ . That’s a price difference of around 82,586 £.

Fuel consumption also shows a difference: the SEAT Ibiza 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.

Ibiza

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 BMW 8 Series Convertible offers clearly more power – delivering 625 HP compared to 150 HP. That’s roughly 475 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW 8 Series Convertible is substantially quicker – completing the sprint in 3.3 s, while the SEAT Ibiza takes 8.1 s. That’s about 4.8 s quicker.

There’s also a difference in torque: the BMW 8 Series Convertible delivers considerably more torque with 750 Nm compared to 250 Nm. That’s about 500 Nm more.

8 Series Convertible

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: SEAT Ibiza offers more seats – 5 vs 4.

In terms of curb weight, SEAT Ibiza is substantially lighter – 1,111 kg compared to 1,915 kg. The difference is around 804 kg.

Looking at boot space, the SEAT Ibiza offers only slightly more boot space – 355 L compared to 350 L. That’s a difference of about 5 L.

When it comes to payload, the SEAT Ibiza carries a bit more – 522 kg compared to 425 kg. That’s a difference of about 97 kg.

Who wins the race in the data check?

The SEAT Ibiza 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 £16,800
Ibiza

SEAT Ibiza

  • Engine Type Petrol
  • Transmission Manuel, Automatic
  • Drive Type Front-Wheel Drive
  • Power HP 80 - 150 HP
  • Consumption L/100km 5 - 5.7 L/100km
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BMW 8 Series Convertible
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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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P90343983_highRes_the-new-bmw-m850i-xd
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Reviews BMW 8 Series Convertible

No reviews yet. Share your experience and help others decide.

SEAT Ibiza

The SEAT Ibiza is a cheeky, well-priced hatchback that blends sharp styling with a grown-up driving character, making it a smart choice for city commuters who still want a bit of fun. Inside it's practical and neatly finished, with sensible kit and easygoing manners that make everyday life less fussy — a car that doesn't try too hard but gets the job done with a smile.

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SEAT-Ibiza-FR_02_title
SEAT-Ibiza-FR_11_HQ
SEAT-Ibiza-FR_05_HQ
SEAT-Ibiza-FR_08_HQ
SEAT-Ibiza-FR_12_HQ

Reviews SEAT Ibiza

4.1 (1 Reviews)
rate
Mateusz
13 Jun 2026, 16:32:31

The pros are the dynamics, the body lines, the style, and the build quality.

Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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SEAT Ibiza

Costs and Consumption
Price
99,400 - 165,800 £
Price
16,800 - 28,600 £
Consumption L/100km
6.9 - 11.2 L/100km
Consumption L/100km
5 - 5.7 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
180 - 255 g/km
co2
114 - 128 g/km
Fuel tank capacity
66 - 68 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Convertible
Body Type
Hatchback
Seats
4
Seats
5
Doors
2
Doors
-
Curb weight
1,915 - 2,125 kg
Curb weight
1,111 - 1,231 kg
Trunk capacity
350 L
Trunk capacity
355 L
Length
4,851 - 4,867 mm
Length
-
Width
1,902 - 1,907 mm
Width
1,780 mm
Height
1,345 - 1,353 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
340 - 425 kg
Payload
489 - 522 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol
Engine Type
Petrol
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
333 - 625 HP
Power HP
80 - 150 HP
Acceleration 0-100km/h
3.3 - 5.5 s
Acceleration 0-100km/h
8.1 - 15.3 s
Max Speed
250 km/h
Max Speed
-
Torque
500 - 750 Nm
Torque
95 - 250 Nm
Number of Cylinders
6 - 8
Number of Cylinders
3 - 4
Power kW
245 - 460 kW
Power kW
59 - 110 kW
Engine capacity
2,993 - 4,395 cm3
Engine capacity
999 - 1,498 cm3

General
Model Year
2024
Model Year
2025
CO2 Efficiency Class
G
CO2 Efficiency Class
D, C
Brand
BMW
Brand
SEAT
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.