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Kia K4 vs BYD Seal U comparison

Compare performance (180 HP vs 324 HP), boot space and price (24,800 £ vs 34,300 £ ) at a glance. Find out which car is the better choice for you – Kia K4 or BYD Seal U?

Kia K4 vs BYD Seal U: Key differences

Kia K4

4.4 (6 Reviews)
rate
  • visibly cheaper
  • clearly lighter
  • barely more trunk space
details

BYD Seal U

4.3 (11 Reviews)
rate
  • significantly more power
  • significantly quicker 0–100 km/h
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

K4

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

Kia K4 is visibly cheaper – starting at 24,800 £ , while the BYD Seal U costs 34,300 £ . That’s a price difference of around 9,515 £.

Seal U

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 Seal U offers significantly more power – delivering 324 HP compared to 180 HP. That’s roughly 144 HP more horsepower.

When accelerating from 0 to 100 km/h, the BYD Seal U is significantly quicker – completing the sprint in 5.9 s, while the Kia K4 takes 8.4 s. That’s about 2.5 s quicker.

There’s also a difference in torque: the BYD Seal U delivers substantially more torque with 550 Nm compared to 265 Nm. That’s about 285 Nm more.

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, Kia K4 is clearly lighter – 1,415 kg compared to 1,940 kg. The difference is around 525 kg.

Looking at boot space, the Kia K4 offers barely more boot space – 604 L compared to 552 L. That’s a difference of about 52 L.

When it comes to payload, the Kia K4 carries barely more – 455 kg compared to 410 kg. That’s a difference of about 45 kg.

Who wins the race in the data check?

The BYD Seal U 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 £34,300
Seal U

BYD Seal U

  • Engine Type Electric, Plugin Hybrid
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 218 - 324 HP
  • Consumption kWh/100km 12.1 - 20.5 kWh/100km
  • Electric Range 70 - 500 km
details

Frequently compared as well

BYD Seal U
Geely Starray
VS
Comparing the BYD Seal U and the Geely Starray shows two different takes on the modern electric fastback: BYD leans on proven EV range, battery tech and a connected ecosystem, while Geely packs bold styling, interior space and value into a compelling package. If you want maximum efficient range and …
BYD Seal U
BYD Sealion 7
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Choosing between the Seal U and the Sealion 7 means weighing sportier driving dynamics against extra space and everyday practicality. This quick comparison highlights the key differences in performance, range, interior comfort and value so you can pick the BYD that best fits your needs.
Kia K4
BYD Seal U

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Kia K4

Kia K4 shakes up the compact-sedan crowd with concept-car looks, a smartly packaged cabin, and the kind of easygoing refinement that makes rush hour feel less like a chore. It blends value, tech, and a dash of attitude, serving up a smooth, confident drive that might have you taking the long way home just to show off those angles.

details
serpimg_SfmUuV

Reviews Kia K4

4.4 (6 Reviews)
rate
Joz
20 May 2026, 08:04:45

A modern, ultra-easy-to-use car with a full set of systems and assistants that work as they should, but with a sluggish gearbox and poor noise insulation.

Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Joz
20 May 2026, 08:04:45

A modern, ultra-easy-to-use car with a full set of systems and assistants that work as they should, but with a sluggish gearbox and poor soundproofing.

Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Joz
20 May 2026, 08:04:44

A modern, ultra-easy-to-use car with a full set of systems and assistants that work as they should, but with a sluggish gearbox and poor noise insulation.

Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Joz
20 May 2026, 08:04:44

A modern, ultra-easy-to-use car with a full set of systems and assistants that work as they should, but with a sluggish gearbox and poor sound insulation.

Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Joz
20 May 2026, 08:04:44

A modern, ultra-easy-to-use car with a full set of systems and assistants that work as they should, but hampered by a sluggish gearbox and poor soundproofing.

Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

BYD Seal U

The BYD Seal U is a sleek electric fastback that blends sporty styling with a roomy, tech-focused interior, making it an appealing choice for buyers who want electric performance without sacrificing comfort. It delivers a smooth, composed ride and intuitive features, positioning it as a practical yet modern option in the EV market.

details
BYD SEAL U 157
BYD SEAL U 061
BYD SEAL U 079

Reviews BYD Seal U

4.3 (11 Reviews)
rate
Tomi
17 Jun 2026, 18:32:35

Great value for money.
Some small software bugs like any car nowdays.

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Emily
20 Jan 2026, 22:52:34

Broke down at 200 KM

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

Frequently compared as well

BYD Seal U
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BYD Seal U
MG HS
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Comparing the BYD Seal and the MG HS puts a modern electric fastback (the BYD Seal) up against a traditional compact SUV (the MG HS) that prioritizes practicality and interior space. This quick guide focuses on real-world driving feel, running costs, tech and ownership considerations so you can …
BYD Seal U
BYD Seal 6
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Think of the BYD Seal U as the nimble, slightly sharper hatchback that’s happier darting through city streets, while the BYD Seal 6 is the sleeker, longer-legged cruiser built for relaxed motorway miles and extra range. If you want playful agility and everyday practicality go Seal U, but if …
BYD Seal U
Ford Kuga
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Comparing the BYD Seal U and the Ford Kuga means weighing a sleek, tech‑forward electric from BYD against Ford’s practical compact crossover—their strengths point to very different priorities. I’ll look at performance, range/fuel economy, interior space, practicality and running costs to help you …
BYD Seal U
Nissan Qashqai
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The BYD Seal U storms in as a slick, electric fastback that outpoints the Qashqai on pace, tech and running costs, while the Nissan Qashqai stays sensible with higher ride height, roomy practicality and a pedigree for reliability. If you crave EV performance and futuristic cabin kit — and can live …
BYD Seal U
Omoda 9
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Comparing the BYD Seal U and the Omoda 9 pits BYD’s sleek, tech-focused electric contender against Omoda’s bold, well-equipped midsize SUV — two very different takes on modern motoring. This quick head-to-head will help you decide whether you value the Seal U’s electric efficiency and advanced tech …
BYD Seal U
Jaecoo 7
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Comparing the BYD Seal U and the Jaecoo 7 pits two very different approaches from rising Chinese automakers against each other: one focused on sporty, tech-forward appeal and the other leaning into practicality and value. This quick face-off will help you see which car’s strengths—design, tech, …
BYD Seal U
Kia Sportage
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In one corner, the sleek, spoiler-tinged BYD Seal U — an electric fastback that flirts with sports-car dynamics while packing a tech-bomb of range and gadgets; in the other, the practical, ever-adaptable Kia Sportage — a compact SUV that blends comfort, space and sensible running costs into a tidy …
Kia K4
BYD Seal U

Costs and Consumption
Price
24,800 - 34,200 £
Price
34,300 - 39,800 £
Consumption L/100km
5.8 - 7.1 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
12.1 - 20.5 kWh/100km
Electric Range
-
Electric Range
70 - 500 km
Battery Capacity
-
Battery Capacity
-
co2
132 - 161 g/km
co2
0 - 71 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback, Estate
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,415 - 1,540 kg
Curb weight
1,940 - 2,147 kg
Trunk capacity
328 - 604 L
Trunk capacity
425 - 552 L
Length
-
Length
-
Width
1,850 mm
Width
1,890 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
435 - 455 kg
Payload
410 kg

Engine and Performance
Engine Type
Petrol, Petrol MHEV
Engine Type
Electric, Plugin Hybrid
Transmission
Manuel, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox, Automatic Gearbox
Drive Type
Front-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
115 - 180 HP
Power HP
218 - 324 HP
Acceleration 0-100km/h
8.4 - 12.3 s
Acceleration 0-100km/h
5.9 - 9.6 s
Max Speed
-
Max Speed
-
Torque
200 - 265 Nm
Torque
300 - 550 Nm
Number of Cylinders
3 - 4
Number of Cylinders
4
Power kW
85 - 132 kW
Power kW
160 - 238 kW
Engine capacity
998 - 1,598 cm3
Engine capacity
1,497 - 1,498 cm3

General
Model Year
2,025 - 2,026
Model Year
2,024 - 2,026
CO2 Efficiency Class
D, E, F
CO2 Efficiency Class
A, B
Brand
Kia
Brand
BYD
Is the Kia K4 offered with different drivetrains?

The Kia K4 is offered with Front-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.