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BMW 8 Series Convertible vs BYD Sealion 7 comparison

Compare performance (625 HP vs 530 HP), boot space and price (99,400 £ vs 42,800 £ ) at a glance. Find out which car is the better choice for you – BMW 8 Series Convertible or BYD Sealion 7?

BMW 8 Series Convertible vs BYD Sealion 7: Key differences

BMW 8 Series Convertible

  • a bit more power
  • noticeably quicker 0–100 km/h
  • a bit lighter
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BYD Sealion 7

4.8 (5 Reviews)
rate
  • substantially cheaper
  • noticeably more trunk space
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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.

BYD Sealion 7 is substantially cheaper – starting at 42,800 £ , while the BMW 8 Series Convertible costs 99,400 £ . That’s a price difference of around 56,580 £.

Sealion 7

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the BMW 8 Series Convertible offers a bit more power – delivering 625 HP compared to 530 HP. That’s roughly 95 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW 8 Series Convertible is noticeably quicker – completing the sprint in 3.3 s, while the BYD Sealion 7 takes 4.5 s. That’s about 1.2 s quicker.

There’s also a difference in torque: the BMW 8 Series Convertible delivers only slightly more torque with 750 Nm compared to 690 Nm. That’s about 60 Nm more.

8 Series Convertible

Space and Everyday Use:

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

Seats: BYD Sealion 7 offers more seats – 5 vs 4.

In terms of curb weight, BMW 8 Series Convertible is a bit lighter – 1,915 kg compared to 2,225 kg. The difference is around 310 kg.

Looking at boot space, the BYD Sealion 7 offers noticeably more boot space – 520 L compared to 350 L. That’s a difference of about 170 L.

When it comes to payload, the BMW 8 Series Convertible carries barely more – 425 kg compared to 410 kg. That’s a difference of about 15 kg.

Who wins the race in the data check?

The BYD Sealion 7 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 £42,800
Sealion 7

BYD Sealion 7

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 313 - 530 HP
  • Consumption kWh/100km 19.9 - 21.9 kWh/100km
  • Electric Range 456 - 502 km
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Frequently compared as well

BYD Seal U
BYD Sealion 7
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Mazda CX-6e
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BMW 8 Series Convertible
BYD Sealion 7

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

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

BYD Sealion 7

The BYD Sealion 7 is a sleek electric wagon that blends sporty styling with surprising practicality, making it a compelling choice for drivers who want something different from the usual hatchback or SUV. Its refined interior and composed road manners give it an upscale feel, while clever packaging keeps it versatile for daily use.

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Reviews BYD Sealion 7

4.8 (5 Reviews)
rate
Andre Plambeck
29 Jul 2026, 06:52:22

Several tests have said that the quality on the outside and especially inside is on par with the German premium brands, if not even higher.
I can confirm that. Incredible for this price.
At 2.4t it's not a corner-carving car. Still, the driving performance is impressive. Compared with my Tiguan Biturbo 240PS, fuel/charging needs have been cut in half.
Consumption and range always depend on the driver. Whether electric or internal combustion. Anyone who drives an EV changes their thinking. Charge when possible, not always only when necessary. Many supermarkets, McDonald's, etc. already have charging options. While eating or shopping, plug in, done. The car is parked anyway. No extra time!
If I think just of the DSG start with that one-second hesitation... that doesn't exist with an EV.
You have to experience it. You don't need 500 hp for that.
I drive the BYD Sealion 7 'Excellence' and I'm mega satisfied

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Rafael Serres Ferran
19 Jul 2026, 17:30:51

A much better vehicle than the 6. It beats it in practically every area. Faster, more room inside, better trunk, more comfortable

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Steinbach
2 Jun 2026, 11:36:25

Fantastic car in every respect. Looks, interior, power, range, comfort, finish, etc.

How do you mainly use this car? (optional): Company car / Business
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
oriol
27 Feb 2026, 15:33:27

range that I can always charge to 100% — unlike other brands that told me it was recommended to stop at 80%, which consequently cut my real range from 600 to 480 by not being able to charge to 100%. I think that's something people should know.

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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BMW 8 Series Convertible
BYD Sealion 7

Costs and Consumption
Price
99,400 - 165,800 £
Price
42,800 - 52,300 £
Consumption L/100km
6.9 - 11.2 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
19.9 - 21.9 kWh/100km
Electric Range
-
Electric Range
456 - 502 km
Battery Capacity
-
Battery Capacity
-
co2
180 - 255 g/km
co2
0 g/km
Fuel tank capacity
66 - 68 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Convertible
Body Type
SUV
Seats
4
Seats
5
Doors
2
Doors
-
Curb weight
1,915 - 2,125 kg
Curb weight
2,225 - 2,435 kg
Trunk capacity
350 L
Trunk capacity
520 L
Length
4,851 - 4,867 mm
Length
-
Width
1,902 - 1,907 mm
Width
1,925 mm
Height
1,345 - 1,353 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
340 - 425 kg
Payload
410 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
333 - 625 HP
Power HP
313 - 530 HP
Acceleration 0-100km/h
3.3 - 5.5 s
Acceleration 0-100km/h
4.5 - 6.7 s
Max Speed
250 km/h
Max Speed
-
Torque
500 - 750 Nm
Torque
380 - 690 Nm
Number of Cylinders
6 - 8
Number of Cylinders
-
Power kW
245 - 460 kW
Power kW
230 - 390 kW
Engine capacity
2,993 - 4,395 cm3
Engine capacity
-

General
Model Year
2024
Model Year
2024
CO2 Efficiency Class
G
CO2 Efficiency Class
A
Brand
BMW
Brand
BYD
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.