@ BMW Group Press
@ BYD Auto / BYD Global Media
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BMW i4 vs BYD Sealion 7 – Which car suits you better?

Two cars, one duel: BMW i4 meets BYD Sealion 7.
Which one wins in performance, efficiency and value for money? Find out now!

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

i4 @ BMW Group Press

Costs and Efficiency:

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.

Sealion 7 @ BYD Auto / BYD Global Media

Engine and Performance:

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.

i4 @ BMW Group Press

Space and Everyday Use:

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.

Who wins the race?

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.

from about £49,400
i4 @ BMW Group Press

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
  • Electric Range : 514 - 613 km

BMW i4

5 (1)
rate

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.

details

BYD Sealion 7

5 (1)
rate

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.

details
BMW i4
BYD Sealion 7
i4 @ BMW Group Press
Sealion 7 @ BYD Auto / BYD Global Media

Costs and Consumption

Price
49400 - 62500 £
Price
42800 - 52300 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
14.7 - 16.7 kWh
Consumption kWh/100km
19.9 - 21.9 kWh
Electric Range
514 - 613 km
Electric Range
456 - 502 km
Battery Capacity
67.1 - 81.3 kWh
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
5
Doors
4
Curb weight
2070 - 2285 kg
Curb weight
2225 - 2435 kg
Trunk capacity
470 L
Trunk capacity
520 L
Length
4783 mm
Length
4830 mm
Width
1852 mm
Width
1925 mm
Height
1448 mm
Height
1620 mm
Max trunk capacity
1290 L
Max trunk capacity
1789 L
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
190 - 225 km/h
Max Speed
215 km/h
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
2025
Model Year
2024
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
BMW
Brand
BYD
What drivetrain options does the BMW i4 have?

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.