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Hyundai IONIQ 6 vs Kia EV6 (2021-2024)
Selected trimLong Range RWDChange trim339 mi · 77.4 kWh · £47,050
At a glance
In this comparison, Hyundai IONIQ 6 leads on running costs, while the Kia EV6 leads on motorway range, family practicality and city driving.
Which should you choose?
Choose the Hyundai IONIQ 6 if...
- you want the lowest running costs - from just 1.9p per mile on off-peak electricity
Choose the Kia EV6 (2021-2024) if...
- you do long motorway journeys - it has the best estimated real-world range at speed
- you need the most family-friendly option with good safety and space
- you need the best car for city driving and tight parking
How we reached the recommendation
Verdict
Our take
The Kia EV6 leads in the most categories, but each car here has its strengths.
Value
Hyundai
6.5
Kia
6.1
Too close to call
Motorway RangeKia
Hyundai
6.8
Kia
7.6
FamilyKia
Hyundai
6.2
Kia
7.2
Charging
Hyundai
7.9
Kia
8.3
Too close to call
Cost Per MileHyundai
Hyundai
7.1
Kia
6.3
City DrivingKia
Hyundai
2.5
Kia
3.6
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Key specifications
Compare the key specifications for your selected trims.
| Measure | Hyundai IONIQ 6Long Range RWD | Kia EV6Air 77.4kWh |
|---|---|---|
| Price | £47,050 | £40,895 (better) |
| Official range | 339 miles (better) | 328 miles |
| Boot space | 401 L | 490 L (better) |
| 10-80% rapid charge | 18 min | 18 min |
| 0-62 mph | 7.4 sec | Not available |
Size Comparison
View:
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Hyundai IONIQ 6
Kia EV6
Length
Hyundai IONIQ 64,855mm
Kia EV64,680mm-175mm
Width
Hyundai IONIQ 61,880mm
Kia EV61,880mm
Height
Hyundai IONIQ 61,495mm-55mm
Kia EV61,550mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Hyundai IONIQ 6Long Range RWD | Kia EV6Air 77.4kWh |
|---|---|---|
| Length | 4,855 mm | 4,680 mm |
| Width (mirrors folded) | 1,880 mm | 1,880 mm |
| Width with mirrors out | 2,141 mm | 2,141 mm |
| Height | 1,495 mm | 1,550 mm |
| Turning circle | 12 m | 11.6 m (better) |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 520 mm spare | 520 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Hyundai IONIQ 6Long Range RWD | Kia EV6Air 77.4kWh |
|---|---|---|
| Seats | 5 | 5 |
| Boot space (seats up) | 401 L | 490 L (better) |
| Boot space (seats down) | 1370 L (better) | 1300 L |
| Frunk | 45 L | 52 L (better) |
| Towing capacity (braked) | 1,500 kg | 1,600 kg (better) |
How each stacks up
Percentile ranks against UK EVs of the same body style.
Hyundai IONIQ 6
- Peak DC charging of 350 kW, faster than 80% of saloon EVs in our catalogue.
- One of 33 of 233 UK EVs in our catalogue with V2L (vehicle-to-load) support.
Kia EV6
Not enough peers to make confident percentile claims.
Full specifications
| Specification |  Hyundai IONIQ 6 Long Range RWD |  Kia EV6 Air 77.4kWh |
|---|---|---|
| Dimensions | ||
| Length | 4.86m | 4.68m-175mm |
| Width | 1.88m | 1.88m |
| Width (mirrors) | 2.14m | 2.14m |
| Height | 1.50m | 1.55m+55mm |
| Wheelbase | 2.95m | 2.90m-50mm |
| Capacity | ||
| Boot (seats up) | 401L | 490L (better) |
| Boot (seats down) | 1370L (better) | 1300L |
| Frunk | 45L | 52L (better) |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 12m | 11.6m (better) |
| Kerb Weight | 1,948kg | Not available |
| Towing Capacity | 1,500kg | 1,600kg (better) |
| Electric | ||
| Battery | 77.4kWh | 77.4kWh |
| Range (WLTP) | 339 mi (better) | 328 mi |
| Max DC Charge | 350kW (better) | 239kW |
| Pricing | ||
| UK MSRP | £47,050 | £40,895 (better) |
| Details | ||
| Body Style | Saloon | SUV |
| Available | 2022+ | 2021–2024 |
* Kia EV6: Heat pump: optional on GT-Line and GT-Line S, standard on GT, not offered on the entry car at launch.
* Kia EV6: Headline WLTP figure for this drive type; versions on larger wheels are rated lower.
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Hyundai IONIQ 6Long Range RWD | Kia EV6Air 77.4kWh |
|---|---|---|
| Official range (WLTP) | 339 miles (better) | 328 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 282 miles (better) | 273 miles |
| 10-80% rapid charge time | 18 min | 18 min |
| Max rapid charge rate | 350 kW (better) | 239 kW |
| Home AC charging | 11 kW | 11 kW |
| Usable battery capacity | 77.4 kWh | 77.4 kWh |
| Battery chemistry | NCMA | NCMA |
| Battery architecture | 800V | 800V |
| Heat pump | Standard (better) | Not standard |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Hyundai IONIQ 6Long Range RWD | Kia EV6Air 77.4kWh |
|---|---|---|
| 0-62 mph | 7.4 sec | Not available |
| Power | 168 kW | 168 kW |
| Torque | 350 Nm | 350 Nm |
| Drivetrain | RWD | RWD |
What the critics say
See how UK motoring publications rate each car in their road tests. One car has more review coverage than the other - we show that rather than guessing.
Hyundai IONIQ 6
Long Range RWD
Kia EV6
Air 77.4kWh
No critic reviews gathered yet for this car.
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
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 | Hyundai IONIQ 6Long Range RWD | Kia EV6Air 77.4kWh |
|---|---|---|
| Used market price from | £24,890 | £16,040 |
| Average used price | £25,395 | £19,440 |
| Active used listings trackedIndependent UK dealer listings seen in the last 90 days. | 6 listings | 16 listings (better) |
| Recent used-price trend | Broadly flat | Down 18.8% over ~6 months |
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 - 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)
Euro NCAP - Kia EV6 Air 77.4kWh
Tested 2022
Adult Occupant90%
Child Occupant86%
Vulnerable Road Users64%
Safety Assist87%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | Hyundai IONIQ 6Long Range RWD | Kia EV6Air 77.4kWh |
|---|---|---|
| Battery warranty | 8 years (better) | 7 years |
| Battery warranty distance | 160,934 km | 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.
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.
Kia EV6
Air 77.4kWh
Owners love
- Very fast rapid charging, with owners regularly seeing 200 kW or more on ultra-rapid chargers
- Comfortable, quiet and refined on long journeys
- Distinctive design that owners still like years on
Watch out for
- Failures of the ICCU (the unit that charges the 12V battery) are the biggest theme, covered by a UK recall, sometimes with long waits for parts
- 12V battery problems, often linked to the ICCU, can leave the car unable to start
- Mixed experiences of Kia dealers, with slow parts and patchy communication
Owner tips
- Check the ICCU recall has been done and ask whether the unit was replaced
- Ask whether the 12V battery has been tested or replaced
Buying options
Get a quote
Hyundai IONIQ 6
Used on AutoTraderLease deals
Kia EV6
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
Hyundai IONIQ 6
- £25,8992024Car360View
- £24,8902024Car360View
Kia EV6
- £23,2642023Car360View
- £28,4002023EV ExpertsView
- £28,9002023EV ExpertsView
Frequently asked questions
Is the Hyundai IONIQ 6 worth the extra £6,155 over the Kia EV6?
The Hyundai IONIQ 6 costs £6,155 more than the Kia EV6. For that premium it adds 111 kW faster peak rapid charging. The Kia EV6 is not just cheaper - it also offers 89 litres more boot space. On EVcarsguide's combined category scores, the Kia EV6 comes out ahead overall.
Which is cheaper to own over 5 years, the Hyundai IONIQ 6 or the Kia EV6?
The Kia EV6 is £6,155 cheaper to buy. Running costs are almost identical - about £152 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Kia EV6 comes out roughly £6,115 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
What are the Hyundai IONIQ 6 and Kia EV6 like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 282 miles for the Hyundai IONIQ 6 and 273 miles for the Kia EV6 - effectively matched, and both well below their WLTP figures because sustained high speed is the hardest case for an EV. Both rapid-charge to 80% in a similar time, around 18-18 minutes.
Which is easier to park and drive in town, the Hyundai IONIQ 6 or the Kia EV6?
The two are within 0 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 520 mm of total clearance for the Hyundai IONIQ 6 and about 520 mm of total clearance for the Kia EV6. The Kia EV6 also turns in a 0.4 m tighter circle, which helps with U-turns and multi-storey ramps.
Which battery will hold up better as a used buy, the Hyundai IONIQ 6 or the Kia EV6?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 89% battery health for the Hyundai IONIQ 6 and 89% for the Kia EV6. That is close enough that capacity loss should not decide between them. Both use NMC-type cells, so for daily use keep the charge limit near 80% to slow degradation. The Hyundai IONIQ 6 has the longer battery warranty at 8 years, versus 7 for the Kia EV6.
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 Hyundai IONIQ 6 comparisons
More Kia EV6 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 Hyundai IONIQ 6 and Kia EV6 rank among the best family EVsWhere the Hyundai IONIQ 6 and Kia EV6 rank among long-range EVsWhere the Hyundai IONIQ 6 and Kia EV6 rank among the best motorway EVsWhere the Hyundai IONIQ 6 and Kia EV6 rank among the best city EVsWhere the Hyundai IONIQ 6 and Kia EV6 rank among the cheapest EVs to runWhere the Hyundai IONIQ 6 and Kia EV6 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 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.
Guide
Buying a Used Kia EV6 (2021-2024): Which Version, the ICCU Recall, Range & What to Check
A used Kia EV6 buyer’s guide: Air vs GT-Line vs GT-Line S vs GT, RWD or AWD, the ICCU recall and 12V battery, heat pump or not, Kia’s 7-year warranty, 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 .