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BMW i7 vs BYD Sealion 7 comparison

Compare performance (659 HP vs 530 HP), boot space and price (99,200 £ vs 42,800 £ ) at a glance. Find out which car is the better choice for you – BMW i7 or BYD Sealion 7?

BMW i7 vs BYD Sealion 7: Key differences

BMW i7

  • slightly more power
  • very slightly more efficient
  • a bit more electric range
  • visibly quicker 0–100 km/h

BYD Sealion 7

5 (2 Reviews)
rate
  • clearly cheaper
  • somewhat lighter
  • barely 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

i7

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

BYD Sealion 7 is clearly cheaper – starting at 42,800 £ , while the BMW i7 costs 99,200 £ . That’s a price difference of around 56,323 £.

In terms of energy consumption, the BMW i7 is very slightly more efficient: consuming 18.5 kWh/100km compared to 19.9 kWh/100km for the BYD Sealion 7. That’s a difference of about 1.4 kWh/100km.

As for electric range, the BMW i7 offers a bit more range – reaching up to 624 km, about 122 km more than the BYD Sealion 7.

Sealion 7

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the BMW i7 offers slightly more power – delivering 659 HP compared to 530 HP. That’s roughly 129 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW i7 is visibly 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 i7 delivers visibly more torque with 1,100 Nm compared to 690 Nm. That’s about 410 Nm more.

i7

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, BYD Sealion 7 is somewhat lighter – 2,225 kg compared to 2,595 kg. The difference is around 370 kg.

Looking at boot space, the BYD Sealion 7 offers barely more boot space – 520 L compared to 500 L. That’s a difference of about 20 L.

When it comes to payload, the BMW i7 carries markedly more – 535 kg compared to 410 kg. That’s a difference of about 125 kg.

Who wins the race in the data check?

The BYD Sealion 7 sits just ahead 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 £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
details

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BMW i7
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW i7

The BMW i7 is a quietly imposing electric limousine that wraps advanced tech and traditional Bavarian comfort in a futuristic skin. For buyers after serene luxury with a mischievous streak, it pampers rear-seat occupants while reminding the driver that BMW still knows how to make a big car feel alive.

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Reviews BMW i7

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 i7
BYD Sealion 7

Costs and Consumption
Price
99,200 - 157,200 £
Price
42,800 - 52,300 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
18.5 - 20.8 kWh/100km
Consumption kWh/100km
19.9 - 21.9 kWh/100km
Electric Range
559 - 624 km
Electric Range
456 - 502 km
Battery Capacity
101.7 kWh
Battery Capacity
-
co2
0 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
SUV
Seats
5
Seats
5
Doors
4
Doors
-
Curb weight
2,595 - 2,770 kg
Curb weight
2,225 - 2,435 kg
Trunk capacity
500 L
Trunk capacity
520 L
Length
5,391 mm
Length
-
Width
1,950 mm
Width
1,925 mm
Height
1,544 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
480 - 535 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
455 - 659 HP
Power HP
313 - 530 HP
Acceleration 0-100km/h
3.7 - 5.5 s
Acceleration 0-100km/h
4.5 - 6.7 s
Max Speed
205 - 250 km/h
Max Speed
-
Torque
650 - 1,100 Nm
Torque
380 - 690 Nm
Number of Cylinders
-
Number of Cylinders
-
Power kW
335 - 485 kW
Power kW
230 - 390 kW
Engine capacity
-
Engine capacity
-

General
Model Year
2,022 - 2,023
Model Year
2,024
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
BMW
Brand
BYD
Is the BMW i7 offered with different drivetrains?

The BMW i7 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.