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BYD Seal vs Hyundai IONIQ 6
Selected trimDesignChange trim354 mi · 82.5 kWh · £45,730
Selected trimLong Range RWDChange trim339 mi · 77.4 kWh · £47,050
At a glance
In this comparison, BYD Seal leads on family practicality and city driving, while the Hyundai IONIQ 6 leads on motorway range, charging speed and running costs.
Which should you choose?
Choose the BYD Seal if...
- you need the most family-friendly option with good safety and space
- you need the best car for city driving and tight parking
Choose the Hyundai IONIQ 6 if...
- you do long motorway journeys - it has the best estimated real-world range at speed
- you need the fastest charging of these options
- you want the lowest running costs - from just 1.9p per mile on off-peak electricity
How we reached the recommendation
Verdict
Our take
The Hyundai IONIQ 6 leads in the most categories, but each car here has its strengths.
Value
BYD
6.3
Hyundai
6.5
Too close to call
Motorway RangeHyundai
BYD
3.1
Hyundai
6.8
FamilyBYD
BYD
6.7
Hyundai
6.2
ChargingHyundai
BYD
2.4
Hyundai
7.9
Cost Per MileHyundai
BYD
3.4
Hyundai
7.1
City DrivingBYD
BYD
3.6
Hyundai
2.5
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Hyundai IONIQ 6
Long Range RWD
- 200 kW faster rapid charging
- 19 min quicker 10-80% rapid charge
- 750 kg more towing capacity
Key specifications
Compare the key specifications for your selected trims.
| Measure | BYD SealDesign | Hyundai IONIQ 6Long Range RWD |
|---|---|---|
| Price | £45,730 (better) | £47,050 |
| Official range | 354 miles (better) | 339 miles |
| Boot space | 400 L | 401 L (better) |
| 10-80% rapid charge | 37 min | 18 min (better) |
| 0-62 mph | 5.9 sec (better) | 7.4 sec |
Size Comparison
View:
Align by:
BYD Seal
Hyundai IONIQ 6
Length
BYD Seal4,800mm-55mm
Hyundai IONIQ 64,855mm
Width
BYD Seal1,875mm-5mm
Hyundai IONIQ 61,880mm
Height
BYD Seal1,460mm-35mm
Hyundai IONIQ 61,495mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | BYD SealDesign | Hyundai IONIQ 6Long Range RWD |
|---|---|---|
| Length | 4,800 mm | 4,855 mm |
| Width (mirrors folded) | 1,875 mm (better) | 1,880 mm |
| Width with mirrors out | 2,150 mm | 2,141 mm (better) |
| Height | 1,460 mm | 1,495 mm |
| Turning circle | 11.2 m (better) | 12 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 525 mm spare (better) | 520 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | BYD SealDesign | Hyundai IONIQ 6Long Range RWD |
|---|---|---|
| Seats | 5 | 5 |
| ISOFIX child-seat points | 3 | Not available |
| Boot space (seats up) | 400 L | 401 L (better) |
| Boot space (seats down) | Not available | 1370 L |
| Frunk | 53 L (better) | 45 L |
| Towing capacity (braked) | 750 kg | 1,500 kg (better) |
How each stacks up
Percentile ranks against UK EVs of the same body style.
BYD Seal
- One of 32 of 232 UK EVs in our catalogue with V2L (vehicle-to-load) support.
- 11.2 m turning circle, tighter than 85% of saloon EVs in our database.
Hyundai IONIQ 6
Not enough peers to make confident percentile claims.
Full specifications
| Specification |  BYD Seal Design |  Hyundai IONIQ 6 Long Range RWD |
|---|---|---|
| Dimensions | ||
| Length | 4.80m | 4.86m+55mm |
| Width | 1.88m | 1.88m+5mm |
| Width (mirrors) | 2.15m | 2.14m-9mm |
| Height | 1.46m | 1.50m+35mm |
| Wheelbase | 2.92m | 2.95m+30mm |
| Capacity | ||
| Boot (seats up) | 400L | 401L (better) |
| Boot (seats down) | Not available | 1370L |
| Frunk | 53L (better) | 45L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 11.2m (better) | 12m |
| Kerb Weight | 2,055kg | 1,948kg (better) |
| Towing Capacity | 750kg | 1,500kg (better) |
| Electric | ||
| Battery | 82.5kWh (better) | 77.4kWh |
| Range (WLTP) | 354 mi (better) | 339 mi |
| Max DC Charge | 150kW | 350kW (better) |
| Pricing | ||
| UK MSRP | £45,730 (better) | £47,050 |
| Details | ||
| Body Style | Saloon | Saloon |
| Available | 2023+ | 2022+ |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | BYD SealDesign | Hyundai IONIQ 6Long Range RWD |
|---|---|---|
| Official range (WLTP) | 354 miles (better) | 339 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 244 miles | 282 miles (better) |
| 10-80% rapid charge time | 37 min | 18 min (better) |
| Max rapid charge rate | 150 kW | 350 kW (better) |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | 166 Wh/km | Not available |
| Usable battery capacity | 82.5 kWh (better) | 77.4 kWh |
| Battery chemistry | LFP | NCMA |
| Battery architecture | 400V | 800V (better) |
| Heat pump | Standard | Standard |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | BYD SealDesign | Hyundai IONIQ 6Long Range RWD |
|---|---|---|
| 0-62 mph | 5.9 sec (better) | 7.4 sec |
| Power | 230 kW (better) | 168 kW |
| Torque | 360 Nm (better) | 350 Nm |
| Drivetrain | RWD | RWD |
What the critics say
See how UK motoring publications rate each car in their road tests.
BYD Seal
Design
Hyundai IONIQ 6
Long Range RWD
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
BYD Seal
All 3 videos
Reviews and videos discuss each model overall; the specifications above apply to your selected trims.
Prices & deals
New and used prices
Current pricing and recent used-market behaviour.
| Measure | BYD SealDesign | Hyundai IONIQ 6Long Range RWD |
|---|---|---|
| Used market price from | £30,677 | £24,890 |
| Average used price | £31,449 | £25,395 |
| Active used listings trackedIndependent UK dealer listings seen in the last 90 days. | 16 listings (better) | 6 listings |
| Saving vs RRP | £14,281 below new | £21,655 below new |
| Recent used-price trend | Down 1.4% over ~6 months | Broadly flat |
Used prices are indicative figures gathered from independent UK dealer listings and change frequently.
Calculate your real costs
For a useful running-cost comparison, factor in your mileage, charging access and current petrol or diesel car alongside the EV estimate.
Compare with petrol or diesel
Compare purchase price, energy, road tax and maintenance with a petrol or diesel alternative.
Calculate company-car tax
Work out monthly Benefit-in-Kind using current and future HMRC rates.
Cost per mile
Compare EV charging costs per mile with petrol and diesel using your charging options.
Check a lease quote
Assess the effective monthly cost alongside the list price and expected depreciation.
Safety & ownership confidence
Euro NCAP - BYD Seal Design
Tested 2023
Adult Occupant89%
Child Occupant87%
Vulnerable Road Users82%
Safety Assist76%
Full result on euroncap.com (opens in new tab)
Euro NCAP - Hyundai IONIQ 6 Long Range RWD
Tested 2022
Adult Occupant97%
Child Occupant87%
Vulnerable Road Users66%
Safety Assist90%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | BYD SealDesign | Hyundai IONIQ 6Long Range RWD |
|---|---|---|
| Battery warranty | 8 years | 8 years |
| Battery warranty distance | 250,000 km (better) | 160,934 km |
What owners say
Aggregated from UK owner forums and communities - the things you only learn after living with the car.
Shared watch-outs for both cars
Owners of every car here flag real-world range, dealer & service support. Worth checking on a test drive whichever you choose.
BYD Seal
Design
Owners love
- Owners rate the Seal as excellent value: equipment and performance comparable with Mercedes or BMW for far less, with no option-pack creep.
- It is quick (the Excellence especially), quiet and comfortable on long journeys, with good rear seats and space.
- The exterior design and well-built interior impress, and owners prefer the interior to a Tesla Model 3's.
Watch out for
- Driver-assistance warnings and lane-keeping are intrusive and often need turning off at every start.
- Winter range falls to about 200-250 miles, and 150 kW peak charging is only average.
- Too many functions are in the touchscreen, which can be laggy.
Owner tips
- Charge to 100% when you need it: the LFP battery is designed for it.
- Turn down the safety-system alert volume and set your preferred assists at the start of each drive.
Hyundai IONIQ 6
Long Range RWD
Owners love
- Owners describe it as quiet, smooth and comfortable, with generous rear legroom.
- It is very efficient on the road: owners report around 3.75 miles per kWh.
- Rapid charging is fast, holding high speeds until well past 80%.
Watch out for
- The ICCU (the unit that charges the 12V battery) is the main worry: owners report failures that left the car undrivable, including on cars that had the recall update.
- Headroom in the back is tight for taller passengers, and the saloon boot is less practical than a hatchback's.
- The styling divides opinion.
Owner tips
- Check the recall history, including the ICCU recall, and keep an eye on the 12V battery.
- Choose 18-inch wheels for the best range.
Buying options
Get a quote
BYD Seal
Used on AutoTraderLease deals
Hyundai IONIQ 6
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
BYD Seal
- £30,6992025Car360View
- £29,6822025Car360View
- £29,6722025Car360View
Hyundai IONIQ 6
- £25,8992024Car360View
- £24,8902024Car360View
Frequently asked questions
Is the Hyundai IONIQ 6 worth the extra £1,320 over the BYD Seal?
The Hyundai IONIQ 6 costs £1,320 more than the BYD Seal. For that premium it adds 200 kW faster peak rapid charging. The BYD Seal is not just cheaper - it also offers 62 kW more power and a 1.5s quicker 0-62mph time. On EVcarsguide's combined category scores, the Hyundai IONIQ 6 comes out ahead overall.
Which is cheaper to own over 5 years, the BYD Seal or the Hyundai IONIQ 6?
The BYD Seal is £1,320 cheaper to buy. The Hyundai IONIQ 6 is cheaper to charge, roughly £152 a year versus £184 for the BYD Seal, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the BYD Seal comes out roughly £1,160 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
What are the BYD Seal and Hyundai IONIQ 6 like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 244 miles for the BYD Seal and 282 miles for the Hyundai IONIQ 6 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Hyundai IONIQ 6 goes roughly 38 miles further between charging stops. A rapid charge to 80% takes around 37 minutes in the BYD Seal and 18 in the Hyundai IONIQ 6, so the Hyundai IONIQ 6 loses less time at each stop. That makes the Hyundai IONIQ 6 the stronger long-distance car.
Which is easier to park and drive in town, the BYD Seal or the Hyundai IONIQ 6?
The two are within 5 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 525 mm of total clearance for the BYD Seal and about 520 mm of total clearance for the Hyundai IONIQ 6. The BYD Seal also turns in a 0.8 m tighter circle, which helps with U-turns and multi-storey ramps.
Which battery will hold up better as a used buy, the BYD Seal or the Hyundai IONIQ 6?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 90% battery health for the BYD Seal and 89% for the Hyundai IONIQ 6. That is close enough that capacity loss should not decide between them. The BYD Seal's LFP-type pack tolerates daily 100% charging, while the Hyundai IONIQ 6's NMC-type pack lasts longest kept to about 80% for everyday use. Both batteries carry a 8-year manufacturer warranty.
Go deeper on each car
Visit the full model pages for owner feedback, expert reviews, used prices and battery-health information.
Compare against other rivals
Compare similarly sized and priced electric cars before finalising your shortlist.
More BYD Seal comparisons
More Hyundai IONIQ 6 comparisons
See both cars in our rankings
EVcarsguide scores every verified EV on price, range, family use and running costs. Here is where this pair appears.
Where the BYD Seal and Hyundai IONIQ 6 rank among the best family EVsWhere the BYD Seal and Hyundai IONIQ 6 rank among long-range EVsWhere the BYD Seal and Hyundai IONIQ 6 rank among the best motorway EVsWhere the BYD Seal and Hyundai IONIQ 6 rank among the best city EVsWhere the BYD Seal and Hyundai IONIQ 6 rank among the cheapest EVs to runWhere the BYD Seal and Hyundai IONIQ 6 rank among EVs with the biggest boots
If neither is quite right
Explore other verified electric cars that may better suit the priorities this pair does not meet.
Further reading
Explore buying and ownership guides to help you choose between these electric cars.
GuideBuying a Used BYD Seal (2023 on): Design vs Excellence, the Long Warranty & What to Pay
A used BYD Seal buyer’s guide: Design RWD vs Excellence AWD, the 2026 update, BYD’s 6-year warranty and 8-year / 250,000 km battery cover, real-world range, what owners report, what to pay (nearly-new ones are about a third off) and a printable checklist.
GuideBuying a Used Hyundai IONIQ 6 (2022 on): RWD vs AWD, the ICCU Recall & What to Pay
A used Hyundai IONIQ 6 buyer’s guide: RWD or AWD, the trims, the ICCU and seat-belt anchor recalls, the 5-year car and 8-year battery warranties, real-world range, what to pay and a printable checklist.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .