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BMW 4 Series Convertible vs BYD Seal comparison

Compare performance (530 HP vs 530 HP), boot space and price (52,100 £ vs 41,100 £ ) at a glance. Find out which car is the better choice for you – BMW 4 Series Convertible or BYD Seal?

BMW 4 Series Convertible vs BYD Seal: Key differences

BMW 4 Series Convertible

  • only slightly quicker 0–100 km/h
  • barely lighter
details

BYD Seal

4.9 (1 Reviews)
rate
  • visibly cheaper
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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

4 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 Seal is visibly cheaper – starting at 41,100 £ , while the BMW 4 Series Convertible costs 52,100 £ . That’s a price difference of around 10,980 £.

Seal

Engine and Performance:

Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.

Both models deliver identical power – 530 HP each.

When accelerating from 0 to 100 km/h, the BMW 4 Series Convertible is only slightly quicker – completing the sprint in 3.7 s, while the BYD Seal takes 3.8 s. That’s about 0.1 s quicker.

There’s also a difference in torque: the BMW 4 Series Convertible delivers barely more torque with 700 Nm compared to 670 Nm. That’s about 30 Nm more.

4 Series Convertible

Space and Everyday Use:

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

Seats: BYD Seal offers more seats – 5 vs 4.

In terms of curb weight, BMW 4 Series Convertible is barely lighter – 1,765 kg compared to 1,907 kg. The difference is around 142 kg.

When it comes to payload, the BYD Seal carries a bit more – 473 kg compared to 420 kg. That’s a difference of about 53 kg.

Who wins the race in the data check?

The BYD Seal 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 £41,100
Seal

BYD Seal

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 231 - 530 HP
  • Consumption kWh/100km : 15.4 - 18.2 kWh/100km
  • Electric Range : 460 - 570 km
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Frequently compared as well

BYD Seal
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VS
BYD's Seal and the freshly updated Seal 6 go head‑to‑head as the Chinese EV player tries to turn a promising coupe‑ish saloon into something truly polished. We pit range, tech and driving feel against each other to see if the Seal 6 is a worthwhile upgrade—or just a shinier Seal with a fancier …
BYD Seal
BYD Han
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The BYD Seal hustles like a compact EV sports saloon — slick fastback styling, sharper handling and a punchy electric setup — while the BYD Han plays the polished executive, offering more rear-seat space, luxury trimmings and a broader line-up (including longer-range and hybrid options). Pick the …
BMW 4 Series Convertible
BYD Seal

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW 4 Series Convertible

The BMW 4 Series Convertible blends coupe-like elegance with open-top drama, its sleek profile and distinctive grille demanding attention whether the roof’s up or down. Behind the wheel it serves up taut handling and a refined ride, making it a rewarding choice for drivers who want sporty character without sacrificing everyday comfort — and yes, it looks spectacular when you drop the top.

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P90400423_highRes_the-all-new-bmw-4-se
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Reviews BMW 4 Series Convertible

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

BYD Seal

The BYD Seal is a sleek electric fastback that punches above its class with sporty looks and a surprisingly premium cabin, offering a very modern alternative for buyers who want style and substance without the badge snobbery. On the road it feels composed and eager, packed with tech and everyday practicality—ideal for shoppers after eco-friendly performance with a cheeky wink.

details
E39C85E9-48DC-4818-A3E7-3F02C3DB2C91
8CF01411-B14A-410A-AA11-F9D5B2E2275B
A96F2FC6-6F90-4820-9B66-B5BED237CAFF
56EE1144-A336-4202-B4CC-B68903013A42
03694851-BE3F-404A-85F8-4557ADB00247

Reviews BYD Seal

4.9 (1 Reviews)
rate
Thomas
14 Apr 2026, 15:59:57

Very well equipped and really good quality. Driving performance is more than adequate and very comfortable.

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

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BMW 4 Series Convertible
BYD Seal

Costs and Consumption
Price
52,100 - 96,600 £
Price
41,100 - 46,300 £
Consumption L/100km
5.2 - 10.2 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
15.4 - 18.2 kWh/100km
Electric Range
-
Electric Range
460 - 570 km
Battery Capacity
-
Battery Capacity
-
co2
136 - 231 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Convertible
Body Type
Sedan
Seats
4
Seats
5
Doors
-
Doors
-
Curb weight
1,765 - 2,055 kg
Curb weight
1,907 - 2,185 kg
Trunk capacity
385 L
Trunk capacity
-
Length
-
Length
-
Width
1,852 - 1,887 mm
Width
1,875 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
345 - 420 kg
Payload
446 - 473 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol, Petrol MHEV
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
184 - 530 HP
Power HP
231 - 530 HP
Acceleration 0-100km/h
3.7 - 8.2 s
Acceleration 0-100km/h
3.8 - 7.5 s
Max Speed
-
Max Speed
-
Torque
300 - 700 Nm
Torque
360 - 670 Nm
Number of Cylinders
4 - 6
Number of Cylinders
-
Power kW
135 - 390 kW
Power kW
170 - 390 kW
Engine capacity
1,995 - 2,998 cm3
Engine capacity
-

General
Model Year
2,024 - 2,025
Model Year
2026
CO2 Efficiency Class
E, F, G
CO2 Efficiency Class
A
Brand
BMW
Brand
BYD
What drive types are available for the BMW 4 Series Convertible?

The BMW 4 Series Convertible is available as Rear-Wheel Drive or 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.