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Hyundai IONIQ 6 vs BYD Seal comparison

Compare performance (650 HP vs 530 HP), boot space and price (39,000 £ vs 41,100 £ ) at a glance. Find out which car is the better choice for you – Hyundai IONIQ 6 or BYD Seal?

Hyundai IONIQ 6 vs BYD Seal: Key differences

Hyundai IONIQ 6

4.6 (1 Reviews)
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  • marginally cheaper
  • slightly more power
  • somewhat more efficient
  • slightly more electric range
  • somewhat quicker 0–100 km/h
  • only slightly lighter
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BYD Seal

4.9 (1 Reviews)
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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

IONIQ 6

BYD Seal VS Hyundai IONIQ 6 — quick take

BYD Seal VS Hyundai IONIQ 6 sit on the same limousine template but aim at different priorities: the BYD Seal pursues comfort, equipment and a reassuringly strong on-demand shove, while the Hyundai IONIQ 6 prioritizes aerodynamic efficiency, whisper-quiet cruising and very rapid recharge times. The BYD Seal feels like a well‑appointed touring car with generous standard kit; the Hyundai IONIQ 6 reads as a precision glider that saves time and energy over long distances. Both cars share the same five‑seat layout, yet their day‑to‑day personalities diverge sharply — one leans lounge, the other leans long‑haul efficiency. Read on to see how those differences play out in comfort, usability and who each car really suits before the technical comparison that follows.

Seal

Driving character and road manners

The BYD Seal drives like a comfort-first saloon with a muscular electric punch, especially in its stronger trims, and rewards steady highway miles with calm stability; the Hyundai IONIQ 6 feels lighter on its feet in terms of resistance, more clinical and designed to slice through wind with minimal fuss. BYD Seal prioritizes a composed, confident ride but can feel less communicative through the steering and a touch firmer at low speeds, while the IONIQ 6 trades a little feel for razor‑thin aerodynamic efficiency and notably lower cabin noise. If you like decisive acceleration and a lounge-like highway presence, the BYD Seal will feel natural; if you prefer masking distance with the least fuss and smallest energy penalty, the Hyundai IONIQ 6 is the better companion. Both are no‑pressure cruisers rather than sporty handlers, but their trade-offs are clear: tactile comfort and shove on the Seal vs. whisper-quiet glide and economy on the IONIQ 6.

IONIQ 6

Cabin feel, controls and perceived quality

Inside, the BYD Seal leans into premium touches and a richer materials mix that give it a more upscale first impression, while the Hyundai IONIQ 6 presents a cleaner, more functional cockpit that feels modern but sometimes economical in its plastics. BYD Seal’s seats are broadly comfortable for long stretches though rear cushion depth is an issue for taller passengers, whereas the IONIQ 6 surprises with exceptional rear legroom and an almost airy sense for back‑seat occupants. The Seal’s infotainment packs a lot but can hide common functions in deep menus; the IONIQ 6 is more straightforward but carries some ergonomic quirks like touch strips and a lack of wireless phone mirroring. In short, BYD Seal trades a few touchscreen annoyances for a nicer tactile environment, while Hyundai IONIQ 6 trades some material polish for clarity, quiet and rear‑seat space.

Seal

Practicality and family usability

Both the BYD Seal and Hyundai IONIQ 6 wear limousine silhouettes that look sleek but compromise everyday loading: the BYD Seal has a narrower hatch opening and a frunk that helps smaller loads, while the IONIQ 6’s boot is deeper but set higher with a step that makes bulky items fiddlier to load. For families, the IONIQ 6’s generous legroom is a clear plus for rear passengers on long trips, but the BYD Seal’s flatter floor and easier interior ergonomics make it simpler for three‑across seating and child seats. If you regularly move large or awkward items, neither car behaves like a practical hatchback, but the BYD Seal’s slower hatch and smaller aperture feel more limiting day-to-day compared with the IONIQ 6’s sill and shape trade-offs. Both demand a little planning for bulky cargo; your choice depends on whether passenger comfort (IONIQ 6) or a slightly more premium cabin with smaller opening (BYD Seal) matters more.

IONIQ 6

Long-distance behavior and charging reality

On long trips the distinction becomes operational: the Hyundai IONIQ 6’s charging behavior and low consumption mean fewer and shorter stops, and its cocoon‑quiet cabin reduces fatigue over high‑speed runs, while the BYD Seal rewards mile after mile with comfortable seats and an LFP chemistry that is forgiving for frequent home full charges. The BYD Seal’s slower high‑power charging pace forces more careful route planning and longer pauses, which offsets some of its strong on‑paper range in real itineraries; the IONIQ 6, by contrast, shrinks total travel time thanks to brisk rapid‑charge recovery. Noise and comfort also diverge — the IONIQ 6 is the quieter motorway companion, the BYD Seal delivers a more traditional cushioned ride that some will prefer for hours behind the wheel. For commuters who value short, efficient stops the IONIQ 6 is the practical choice, while long‑distance drivers who prioritise seat comfort and a robust battery chemistry will appreciate the BYD Seal’s touring strengths.

Seal

Who should pick which car — buyer fit and trade-offs

If your daily life is a pattern of long motorway stints, frequent public fast‑charging and an emphasis on minimizing downtime, the Hyundai IONIQ 6 aligns better with that mission thanks to its efficiency, charging rhythm and rear legroom. If you prize a plush cabin, a strong immediate shove and a battery chemistry that tolerates frequent full home charges — plus lots of kit as standard — the BYD Seal is tailored to that comfort‑and‑value mindset. City dwellers and tight‑space parkers will notice the IONIQ 6’s length and visibility quirks, while city drivers who value parking ease and cameras may find the Seal more forgiving despite its low‑speed ride wonkiness. Read on to the technical comparison for the detailed trade-offs in charging behaviour, efficiency and performance that underpin these real‑world differences.

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

IONIQ 6

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

Hyundai IONIQ 6 is marginally cheaper – starting at 39,000 £ , while the BYD Seal costs 41,100 £ . That’s a price difference of around 2,092 £.

In terms of energy consumption, the Hyundai IONIQ 6 is somewhat more efficient: consuming 13.4 kWh/100km compared to 15.4 kWh/100km for the BYD Seal. That’s a difference of about 2 kWh/100km.

As for electric range, the Hyundai IONIQ 6 offers slightly more range – reaching up to 680 km, about 110 km more than the BYD Seal.

Seal

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the Hyundai IONIQ 6 offers slightly more power – delivering 650 HP compared to 530 HP. That’s roughly 120 HP more horsepower.

When accelerating from 0 to 100 km/h, the Hyundai IONIQ 6 is somewhat quicker – completing the sprint in 3.2 s, while the BYD Seal takes 3.8 s. That’s about 0.6 s quicker.

There’s also a difference in torque: the Hyundai IONIQ 6 delivers slightly more torque with 770 Nm compared to 670 Nm. That’s about 100 Nm more.

IONIQ 6

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, Hyundai IONIQ 6 is only slightly lighter – 1,892 kg compared to 1,907 kg. The difference is around 15 kg.

When it comes to payload, the BYD Seal carries only slightly more – 473 kg compared to 438 kg. That’s a difference of about 35 kg.

Who wins the race in the data check?

The Hyundai IONIQ 6 is decisively ahead 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 £39,000
IONIQ 6

Hyundai IONIQ 6

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive, Rear-Wheel Drive
  • Power HP : 170 - 650 HP
  • Consumption kWh/100km : 13.4 - 15.9 kWh/100km
  • Electric Range : 469 - 680 km
Hyundai IONIQ 6
BYD Seal

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

Hyundai IONIQ 6

The Hyundai IONIQ 6 glides down the road with a poise that feels more runway model than commuter car, its sleek silhouette promising efficiency without trying too hard. Inside, a calm, minimalist cabin packed with clever, usable tech makes it a compelling choice for buyers who want electric motoring that's smart, stylish and quietly practical.

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BYD Seal

The BYD Seal is a sleek electric fastback that punches above its class with sporty looks and a surprisingly premium cabin, offering a very modern alternative for buyers who want style and substance without the badge snobbery. On the road it feels composed and eager, packed with tech and everyday practicality—ideal for shoppers after eco-friendly performance with a cheeky wink.

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Hyundai IONIQ 6
BYD Seal

Costs and Consumption

Price
39,000 - 64,300 £
Price
41,100 - 46,300 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
13.4 - 15.9 kWh/100km
Consumption kWh/100km
15.4 - 18.2 kWh/100km
Electric Range
469 - 680 km
Electric Range
460 - 570 km
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body

Body Type
Hatchback
Body Type
Sedan
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,892 - 2,134 kg
Curb weight
1,907 - 2,185 kg
Trunk capacity
401 L
Trunk capacity
-
Length
-
Length
-
Width
1,880 - 1,940 mm
Width
1,875 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
386 - 438 kg
Payload
446 - 473 kg

Engine and Performance

Engine Type
Electric
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
170 - 650 HP
Power HP
231 - 530 HP
Acceleration 0-100km/h
3.2 - 8.3 s
Acceleration 0-100km/h
3.8 - 7.5 s
Max Speed
-
Max Speed
-
Torque
350 - 770 Nm
Torque
360 - 670 Nm
Number of Cylinders
-
Number of Cylinders
-
Power kW
125 - 478 kW
Power kW
170 - 390 kW
Engine capacity
-
Engine capacity
-

General

Model Year
2026
Model Year
2026
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
Hyundai
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.