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SEAT Arona vs BYD Sealion 7 comparison

Compare performance (150 HP vs 530 HP), boot space and price (20,700 £ vs 42,800 £ ) at a glance. Find out which car is the better choice for you – SEAT Arona or BYD Sealion 7?

SEAT Arona vs BYD Sealion 7: Key differences

SEAT Arona

4.8 (6 Reviews)
rate
  • substantially cheaper
  • considerably lighter
details

BYD Sealion 7

4.8 (5 Reviews)
rate
  • substantially more power
  • substantially quicker 0–100 km/h
  • visibly 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.

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

Arona

Costs and Efficiency:

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

SEAT Arona is substantially cheaper – starting at 20,700 £ , while the BYD Sealion 7 costs 42,800 £ . That’s a price difference of around 22,148 £.

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 substantially 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 substantially quicker – completing the sprint in 4.5 s, while the SEAT Arona takes 8.3 s. That’s about 3.8 s quicker.

There’s also a difference in torque: the BYD Sealion 7 delivers considerably more torque with 690 Nm compared to 250 Nm. That’s about 440 Nm more.

Arona

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Both vehicles offer seating for 5 people.

In terms of curb weight, SEAT Arona is considerably lighter – 1,188 kg compared to 2,225 kg. The difference is around 1,037 kg.

Looking at boot space, the BYD Sealion 7 offers visibly more boot space – 520 L compared to 400 L. That’s a difference of about 120 L.

When it comes to payload, the SEAT Arona carries visibly more – 522 kg compared to 410 kg. That’s a difference of about 112 kg.

Who wins the race in the data check?

The BYD Sealion 7 is clearly superior 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
SEAT Arona
BYD Sealion 7

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

SEAT Arona

The SEAT Arona is a compact crossover that blends practical, city-friendly packaging with a sporty, youthful design. It delivers a comfortable ride, an intuitive cabin and economical running costs, making it a sensible pick for daily drives and weekend getaways.

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 Arona
BYD Sealion 7

Costs and Consumption

Price
20,700 - 30,300 £
Price
42,800 - 52,300 £
Consumption L/100km
5.3 - 5.8 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
120 - 132 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
1,188 - 1,268 kg
Curb weight
2,225 - 2,435 kg
Trunk capacity
400 L
Trunk capacity
520 L
Length
-
Length
-
Width
1,780 mm
Width
1,925 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
502 - 522 kg
Payload
410 kg

Engine and Performance

Engine Type
Petrol
Engine Type
Electric
Transmission
Manual, 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
95 - 150 HP
Power HP
313 - 530 HP
Acceleration 0-100km/h
8.3 - 11.1 s
Acceleration 0-100km/h
4.5 - 6.7 s
Max Speed
-
Max Speed
-
Torque
175 - 250 Nm
Torque
380 - 690 Nm
Number of Cylinders
3 - 4
Number of Cylinders
-
Power kW
70 - 110 kW
Power kW
230 - 390 kW
Engine capacity
999 - 1,498 cm3
Engine capacity
-

General

Model Year
2025
Model Year
2024
CO2 Efficiency Class
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.