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SEAT Ateca vs BYD Sealion 7 comparison

Compare performance (150 HP vs 530 HP), boot space and price (25,100 £ vs 42,800 £ ) at a glance. Find out which car is the better choice for you – SEAT Ateca or BYD Sealion 7?

SEAT Ateca vs BYD Sealion 7: Key differences

SEAT Ateca

4.5 (6 Reviews)
rate
  • clearly cheaper
  • clearly lighter
details

BYD Sealion 7

4.8 (4 Reviews)
rate
  • clearly more power
  • considerably quicker 0–100 km/h
  • very slightly more trunk space
details

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

Ateca

Costs and Efficiency:

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

SEAT Ateca is clearly cheaper – starting at 25,100 £ , while the BYD Sealion 7 costs 42,800 £ . That’s a price difference of around 17,743 £.

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 BYD Sealion 7 offers clearly more power – delivering 530 HP compared to 150 HP. That’s roughly 380 HP more horsepower.

When accelerating from 0 to 100 km/h, the BYD Sealion 7 is considerably quicker – completing the sprint in 4.5 s, while the SEAT Ateca takes 9 s. That’s about 4.5 s quicker.

There’s also a difference in torque: the BYD Sealion 7 delivers considerably more torque with 690 Nm compared to 360 Nm. That’s about 330 Nm more.

Ateca

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, SEAT Ateca is clearly lighter – 1,345 kg compared to 2,225 kg. The difference is around 880 kg.

Looking at boot space, the BYD Sealion 7 offers very slightly more boot space – 520 L compared to 510 L. That’s a difference of about 10 L.

When it comes to payload, the SEAT Ateca carries markedly more – 525 kg compared to 410 kg. That’s a difference of about 115 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
SEAT Ateca
BYD Sealion 7

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

SEAT Ateca

The SEAT Ateca blends sharp, purposeful styling with practical space that turns everyday errands into something a bit more enjoyable. It’s poised and engaging to drive for its segment, offers solid value, and has just enough personality to make you smile on the school run.

details

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.

details
SEAT Ateca
BYD Sealion 7

Costs and Consumption

Price
25,100 - 36,900 £
Price
42,800 - 52,300 £
Consumption L/100km
4.9 - 6.4 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
19.9 - 21.9 kWh/100km
Electric Range
-
Electric Range
456 - 502 km
Battery Capacity
-
Battery Capacity
-
co2
129 - 144 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body

Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,345 - 1,514 kg
Curb weight
2,225 - 2,435 kg
Trunk capacity
510 L
Trunk capacity
520 L
Length
-
Length
-
Width
1,841 mm
Width
1,925 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
516 - 525 kg
Payload
410 kg

Engine and Performance

Engine Type
Petrol, Diesel
Engine Type
Electric
Transmission
Manuel, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
116 - 150 HP
Power HP
313 - 530 HP
Acceleration 0-100km/h
9 - 11 s
Acceleration 0-100km/h
4.5 - 6.7 s
Max Speed
-
Max Speed
-
Torque
200 - 360 Nm
Torque
380 - 690 Nm
Number of Cylinders
3 - 4
Number of Cylinders
-
Power kW
85 - 110 kW
Power kW
230 - 390 kW
Engine capacity
999 - 1,968 cm3
Engine capacity
-

General

Model Year
2025
Model Year
2024
CO2 Efficiency Class
E, D
CO2 Efficiency Class
A
Brand
SEAT
Brand
BYD
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.