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BMW i4 vs BYD Sealion 7 comparison

Compare performance (601 HP vs 530 HP), boot space and price (49,400 £ vs 42,800 £ ) at a glance. Find out which car is the better choice for you – BMW i4 or BYD Sealion 7?

BMW i4 vs BYD Sealion 7: Key differences

BMW i4

5 (1 Reviews)
rate
  • moderately more power
  • clearly more efficient
  • slightly more electric range
  • clearly quicker 0–100 km/h
  • very slightly lighter

BYD Sealion 7

5 (2 Reviews)
rate
  • somewhat cheaper
  • very slightly more trunk space

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

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

i4

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 somewhat cheaper – starting at 42,800 £ , while the BMW i4 costs 49,400 £ . That’s a price difference of around 6,523 £.

In terms of energy consumption, the BMW i4 is clearly more efficient: consuming 14.7 kWh/100km compared to 19.9 kWh/100km for the BYD Sealion 7. That’s a difference of about 5.2 kWh/100km.

As for electric range, the BMW i4 offers slightly more range – reaching up to 613 km, about 111 km more than the BYD Sealion 7.

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 i4 offers moderately more power – delivering 601 HP compared to 530 HP. That’s roughly 71 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW i4 is clearly quicker – completing the sprint in 3.7 s, while the BYD Sealion 7 takes 4.5 s. That’s about 0.8 s quicker.

There’s also a difference in torque: the BMW i4 delivers somewhat more torque with 795 Nm compared to 690 Nm. That’s about 105 Nm more.

i4

Space and Everyday Use:

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

Both vehicles offer seating for 5 people.

In terms of curb weight, BMW i4 is very slightly lighter – 2,070 kg compared to 2,225 kg. The difference is around 155 kg.

Looking at boot space, the BYD Sealion 7 offers very slightly more boot space – 520 L compared to 470 L. That’s a difference of about 50 L.

When it comes to payload, the BMW i4 carries a bit more – 480 kg compared to 410 kg. That’s a difference of about 70 kg.

Who wins the race in the data check?

The BMW i4 is clearly superior overall 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 £49,400
i4

BMW i4

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 286 - 601 HP
  • Consumption kWh/100km : 14.7 - 16.7 kWh/100km
  • Electric Range : 514 - 613 km
details

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BMW i4
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW i4

The BMW i4 arrives with the poise of a classic Gran Coupé, marrying BMW's playful handling with a sleek, modern interior that makes switching to electric feel like an upgrade rather than a compromise. For buyers who want a practical daily driver that still enjoys a spirited back-road run, the i4 quietly delivers smiles and a surprising dose of driver engagement.

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P90439358_highRes_bmw-i4-m50-9-2021
P90439356_highRes_bmw-i4-m50-9-2021
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P90439369_highRes_bmw-i4-m50-9-2021
P90422904_highRes_bmw-i4-interieur-6-2

Reviews BMW i4

5 (1 Reviews)
rate

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

BYD Sealion 7

The Sealion 7 captivates with its striking design and impressive performance that appeals to both enthusiasts and casual drivers alike. With a focus on comfort and advanced technology, this model redefines the driving experience, making every journey enjoyable. Its sleek silhouette coupled with an innovative interior showcases the perfect blend of style and functionality.

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Reviews BYD Sealion 7

5 (2 Reviews)
rate
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 i4
BYD Sealion 7

Costs and Consumption
Price
49,400 - 62,500 £
Price
42,800 - 52,300 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
14.7 - 16.7 kWh/100km
Consumption kWh/100km
19.9 - 21.9 kWh/100km
Electric Range
514 - 613 km
Electric Range
456 - 502 km
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
2,070 - 2,285 kg
Curb weight
2,225 - 2,435 kg
Trunk capacity
470 L
Trunk capacity
520 L
Length
-
Length
-
Width
1,852 mm
Width
1,925 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
445 - 480 kg
Payload
410 kg

Engine and Performance
Engine Type
Electric
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
286 - 601 HP
Power HP
313 - 530 HP
Acceleration 0-100km/h
3.7 - 6 s
Acceleration 0-100km/h
4.5 - 6.7 s
Max Speed
-
Max Speed
-
Torque
400 - 795 Nm
Torque
380 - 690 Nm
Number of Cylinders
-
Number of Cylinders
-
Power kW
210 - 442 kW
Power kW
230 - 390 kW
Engine capacity
-
Engine capacity
-

General
Model Year
2,024 - 2,025
Model Year
2,024
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
BMW
Brand
BYD
Is the BMW i4 offered with different drivetrains?

The BMW i4 is offered with 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.