Two cars, one duel: BMW i4 meets BYD Sealion 7.
Which one wins in performance, efficiency and value for money? Find out now!
When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.
BYD Sealion 7 has a a bit advantage in terms of price – it starts at 42800 £, while the BMW i4 costs 49400 £. That’s a price difference of around 6523 £.
In terms of energy consumption, the advantage goes to the BMW i4: with 14.70 kWh per 100 km, it’s clearly perceptible more efficient than the BYD Sealion 7 with 19.90 kWh. That’s a difference of about 5.20 kWh.
As for range, the BMW i4 performs to a small extent better – achieving up to 613 km, about 111 km more than the BYD Sealion 7.
Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.
When it comes to engine power, the BMW i4 has a slightly edge – offering 601 HP compared to 530 HP. That’s roughly 71 HP more horsepower.
In acceleration from 0 to 100 km/h, the BMW i4 is evident quicker – completing the sprint in 3.70 s, while the BYD Sealion 7 takes 4.50 s. That’s about 0.80 s faster.
In terms of top speed, the BMW i4 performs slight better – reaching 225 km/h, while the BYD Sealion 7 tops out at 215 km/h. The difference is around 10 km/h.
There’s also a difference in torque: BMW i4 pulls slightly stronger with 795 Nm compared to 690 Nm. That’s about 105 Nm difference.
Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.
Both vehicles offer seating for 5 people.
In curb weight, BMW i4 is hardly perceptible lighter – 2070 kg compared to 2225 kg. The difference is around 155 kg.
In terms of boot space, the BYD Sealion 7 offers hardly perceptible more room – 520 L compared to 470 L. That’s a difference of about 50 L.
In maximum load capacity, the BYD Sealion 7 performs distinct better – up to 1789 L, which is about 499 L more than the BMW i4.
When it comes to payload, BMW i4 slightly takes the win – 480 kg compared to 410 kg. That’s a difference of about 70 kg.
The BMW i4 proves to be leaves the rival little chance and therefore becomes our DriveDuel Champion!
BMW i4 is the better all-rounder in this comparison.
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.
detailsThe 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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Costs and Consumption |
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Price
49400 - 62500 £
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Price
42800 - 52300 £
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Consumption L/100km
-
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Consumption L/100km
-
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Consumption kWh/100km
14.7 - 16.7 kWh
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Consumption kWh/100km
19.9 - 21.9 kWh
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Electric Range
514 - 613 km
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Electric Range
456 - 502 km
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Battery Capacity
67.1 - 81.3 kWh
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Battery Capacity
-
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co2
0 g/km
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co2
0 g/km
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Fuel tank capacity
-
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Fuel tank capacity
-
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Dimensions and Body |
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Body Type
Hatchback
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Body Type
SUV
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Seats
5
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Seats
5
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Doors
5
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Doors
4
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Curb weight
2070 - 2285 kg
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Curb weight
2225 - 2435 kg
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Trunk capacity
470 L
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Trunk capacity
520 L
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Length
4783 mm
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Length
4830 mm
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Width
1852 mm
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Width
1925 mm
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Height
1448 mm
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Height
1620 mm
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Max trunk capacity
1290 L
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Max trunk capacity
1789 L
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Payload
445 - 480 kg
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Payload
410 kg
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Engine and Performance |
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Engine Type
Electric
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Engine Type
Electric
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Transmission
Automatic
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Transmission
Automatic
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Transmission Detail
Reduction Gearbox
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Transmission Detail
Reduction Gearbox
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Drive Type
Rear-Wheel Drive, All-Wheel Drive
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Drive Type
Rear-Wheel Drive, All-Wheel Drive
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Power HP
286 - 601 HP
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Power HP
313 - 530 HP
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Acceleration 0-100km/h
3.7 - 6 s
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Acceleration 0-100km/h
4.5 - 6.7 s
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Max Speed
190 - 225 km/h
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Max Speed
215 km/h
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Torque
400 - 795 Nm
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Torque
380 - 690 Nm
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Number of Cylinders
-
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Number of Cylinders
-
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Power kW
210 - 442 kW
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Power kW
230 - 390 kW
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Engine capacity
-
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Engine capacity
-
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General |
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Model Year
2025
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Model Year
2024
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CO2 Efficiency Class
A
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CO2 Efficiency Class
A
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Brand
BMW
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Brand
BYD
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The BMW i4 is available as Rear-Wheel Drive or All-Wheel Drive.
The prices and data displayed are estimates based on German list prices and may vary by country. This information is not legally binding.