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BMW 3 Series Saloon vs BYD Sealion 7 comparison

Compare performance (530 HP vs 530 HP), boot space and price (39,900 £ vs 42,800 £ ) at a glance. Find out which car is the better choice for you – BMW 3 Series Saloon or BYD Sealion 7?

BMW 3 Series Saloon vs BYD Sealion 7: Key differences

BMW 3 Series Saloon

  • barely cheaper
  • clearly quicker 0–100 km/h
  • substantially lighter
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BYD Sealion 7

5 (2 Reviews)
rate
  • significantly more electric range
  • very slightly more trunk space
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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

3 Series Saloon

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

BMW 3 Series Saloon is barely cheaper – starting at 39,900 £ , while the BYD Sealion 7 costs 42,800 £ . That’s a price difference of around 2,906 £.

As for electric range, the BYD Sealion 7 offers significantly more range – reaching up to 502 km, about 401 km more than the BMW 3 Series Saloon.

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.

Both models deliver identical power – 530 HP each.

When accelerating from 0 to 100 km/h, the BMW 3 Series Saloon is clearly quicker – completing the sprint in 3.5 s, while the BYD Sealion 7 takes 4.5 s. That’s about 1 s quicker.

There’s also a difference in torque: the BMW 3 Series Saloon delivers marginally more torque with 700 Nm compared to 690 Nm. That’s about 10 Nm more.

3 Series Saloon

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 terms of curb weight, BMW 3 Series Saloon is substantially lighter – 1,575 kg compared to 2,225 kg. The difference is around 650 kg.

Looking at boot space, the BYD Sealion 7 offers very slightly more boot space – 520 L compared to 480 L. That’s a difference of about 40 L.

When it comes to payload, the BMW 3 Series Saloon carries slightly more – 495 kg compared to 410 kg. That’s a difference of about 85 kg.

Who wins the race in the data check?

The BYD Sealion 7 holds a decisive overall lead 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
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Frequently compared as well

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BMW 3 Series Saloon
BYD Sealion 7

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW 3 Series Saloon

The BMW 3 Series saloon is a driver's car in a suit, blending poised handling with a cabin that feels more premium than its practicality suggests. It’s composed enough for daily duties yet playful enough to keep weekend drives interesting, making it a sensible choice for buyers who still want to have fun.

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Reviews BMW 3 Series Saloon

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

BYD Sealion 7

The BYD Sealion 7 is a sleek electric wagon that blends sporty styling with surprising practicality, making it a compelling choice for drivers who want something different from the usual hatchback or SUV. Its refined interior and composed road manners give it an upscale feel, while clever packaging keeps it versatile for daily use.

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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 3 Series Saloon
BYD Sealion 7

Costs and Consumption
Price
39,900 - 91,000 £
Price
42,800 - 52,300 £
Consumption L/100km
2.4 - 10.1 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
19.9 - 21.9 kWh/100km
Electric Range
96 - 101 km
Electric Range
456 - 502 km
Battery Capacity
-
Battery Capacity
-
co2
54 - 227 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
-
Doors
-
Curb weight
1,575 - 1,960 kg
Curb weight
2,225 - 2,435 kg
Trunk capacity
375 - 480 L
Trunk capacity
520 L
Length
-
Length
-
Width
1,827 - 1,903 mm
Width
1,925 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
405 - 495 kg
Payload
410 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol, Petrol MHEV, Plugin Hybrid
Engine Type
Electric
Transmission
Automatic, Manuel
Transmission
Automatic
Transmission Detail
Automatic Gearbox, Manual Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
150 - 530 HP
Power HP
313 - 530 HP
Acceleration 0-100km/h
3.5 - 8.6 s
Acceleration 0-100km/h
4.5 - 6.7 s
Max Speed
-
Max Speed
-
Torque
250 - 700 Nm
Torque
380 - 690 Nm
Number of Cylinders
4 - 6
Number of Cylinders
-
Power kW
110 - 390 kW
Power kW
230 - 390 kW
Engine capacity
1,995 - 2,998 cm3
Engine capacity
-

General
Model Year
2,024 - 2,025
Model Year
2024
CO2 Efficiency Class
D, E, F, G, B
CO2 Efficiency Class
A
Brand
BMW
Brand
BYD
Is the BMW 3 Series Saloon offered with different drivetrains?

The BMW 3 Series Saloon 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.