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Audi Q8 e-tron vs Kia EV9
Selected trim50 quattro · 2023-25Change trim281 mi · 95 kWh · £67,800
Selected trimAirChange trim349 mi · 99.8 kWh · £66,645
At a glance
In this comparison, Audi Q8 e-tron leads on family practicality, while the Kia EV9 leads on motorway range and charging speed.
Which should you choose?
Choose the Audi Q8 e-tron if...
- you need the most family-friendly option with good safety and space
Choose the Kia EV9 if...
- you do long motorway journeys - it has the best estimated real-world range at speed
- you need the fastest charging of these options
How we reached the recommendation
Verdict
Our take
The Kia EV9 leads in the most categories, but each car here has its strengths.
Value
Audi
4.8
Kia
4.6
Too close to call
Motorway RangeKia
Audi
3
Kia
6.2
FamilyAudi
Audi
7.8
Kia
6.1
ChargingKia
Audi
4
Kia
7.6
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Audi Q8 e-tron
50 quattro
- 236 litres more boot space
- 100 kW more power
- 3.8s quicker 0-62 mph
- 900 kg more towing capacity
- 1 more year of battery warranty
Key specifications
Compare the key specifications for your selected trims.
| Measure | Audi Q8 e-tron50 quattro | Kia EV9Air |
|---|---|---|
| Price | £67,800 | £66,645 (better) |
| Official range | 281 miles | 349 miles (better) |
| Boot space | 569 L (better) | 333 L |
| 10-80% rapid charge | 31 min | 24 min (better) |
| 0-62 mph | 5.6 sec (better) | 9.4 sec |
Size Comparison
View:
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Audi Q8 e-tron
Kia EV9
Length
Audi Q8 e-tron4,915mm-100mm
Kia EV95,015mm
Width
Audi Q8 e-tron1,937mm-43mm
Kia EV91,980mm
Height
Audi Q8 e-tron1,633mm-147mm
Kia EV91,780mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Audi Q8 e-tron50 quattro | Kia EV9Air |
|---|---|---|
| Length | 4,915 mm | 5,015 mm |
| Width (mirrors folded) | 1,937 mm (better) | 1,980 mm |
| Width with mirrors out | 2,189 mm | Not available |
| Height | 1,633 mm | 1,780 mm |
| Turning circle | 12.2 m (better) | 12.3 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 463 mm spare (better) | 420 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Audi Q8 e-tron50 quattro | Kia EV9Air |
|---|---|---|
| Seats | 5 | 7 (better) |
| ISOFIX child-seat points | 2 | Not available |
| Boot space (seats up) | 569 L (better) | 333 L |
| Boot space (seats down) | 1637 L (better) | 828 L |
| Frunk | Not available | 90 L |
| Towing capacity (braked) | 1,800 kg (better) | 900 kg |
How each stacks up
Percentile ranks against UK EVs of the same body style.
Audi Q8 e-tron
- At 4,915 mm, longer than 90% of SUVs we track.
- Boot space of 569 L is bigger than 85% of SUVs we track.
Kia EV9
- A 90 L frunk, one of 11 of 232 UK EVs in our catalogue with a front boot of 90 L or more.
- At 5,015 mm, longer than 90% of SUVs we track.
- 3,100 mm wheelbase, longer than 95% of SUVs we track.
Full specifications
| Specification |  Audi Q8 e-tron 50 quattro |  Kia EV9 Air |
|---|---|---|
| Dimensions | ||
| Length | 4.92m | 5.01m+100mm |
| Width | 1.94m | 1.98m+43mm |
| Width (mirrors) | 2.19m | Not available |
| Height | 1.63m | 1.78m+147mm |
| Wheelbase | 2.93m | 3.10m+172mm |
| Ground Clearance | 172mm | Not available |
| Capacity | ||
| Boot (seats up) | 569L (better) | 333L |
| Boot (seats down) | 1637L (better) | 828L |
| Frunk | Not available | 90L |
| Seats | 5 | 7 (better) |
| Practicality | ||
| Turning Circle | 12.2m (better) | 12.3m |
| Kerb Weight | 2,595kg | 2,492kg (better) |
| Towing Capacity | 1,800kg (better) | 900kg |
| Electric | ||
| Battery | 95kWh | 99.8kWh (better) |
| Range (WLTP) | 281 mi | 349 mi (better) |
| Max DC Charge | 150kW | 210kW (better) |
| Pricing | ||
| UK MSRP | £67,800 | £66,645 (better) |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2023–2025 | 2023+ |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Audi Q8 e-tron50 quattro | Kia EV9Air |
|---|---|---|
| Official range (WLTP) | 281 miles | 349 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 234 miles | 291 miles (better) |
| 10-80% rapid charge time | 31 min | 24 min (better) |
| Max rapid charge rate | 150 kW | 210 kW (better) |
| Home AC charging | 11 kW | 11 kW |
| Usable battery capacity | 89 kWh | 99.8 kWh (better) |
| Battery chemistry | NMC | NCMA |
| Battery architecture | 400V | 800V (better) |
| Heat pump | Standard | Not available |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Audi Q8 e-tron50 quattro | Kia EV9Air |
|---|---|---|
| 0-62 mph | 5.6 sec (better) | 9.4 sec |
| Power | 250 kW (better) | 150 kW |
| Torque | 664 Nm (better) | 350 Nm |
| Drivetrain | AWD | 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.
Audi Q8 e-tron
50 quattro
No critic reviews gathered yet for this car.
Kia EV9
Air
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
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 - Audi Q8 e-tron 50 quattro
Tested 2019
Adult Occupant91%
Child Occupant85%
Vulnerable Road Users71%
Safety Assist76%
Euro NCAP - Kia EV9 Air
Tested 2023
Adult Occupant84%
Child Occupant88%
Vulnerable Road Users76%
Safety Assist83%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | Audi Q8 e-tron50 quattro | Kia EV9Air |
|---|---|---|
| Battery warranty | 8 years (better) | 7 years |
| Battery warranty distance | 160,000 km | 160,934 km (better) |
Buying options
Get a quote
Audi Q8 e-tron
Used on AutoTraderLease deals
Kia EV9
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
Audi Q8 e-tron
- £43,2992023Car360View
- £39,7912024Car360View
- £39,6082024Car360View
Kia EV9
No active listings.
Frequently asked questions
Is the Audi Q8 e-tron worth the extra £1,155 over the Kia EV9?
The Audi Q8 e-tron costs £1,155 more than the Kia EV9. For that premium it adds 236 litres more boot space, 100 kW more power and a 3.8s quicker 0-62mph time. The Kia EV9 is not just cheaper - it also offers 68 miles more WLTP range, 60 kW faster peak rapid charging and 2 more seats (7 versus 5). On EVcarsguide's combined category scores, the Kia EV9 comes out ahead overall.
Which is cheaper to own over 5 years, the Audi Q8 e-tron or the Kia EV9?
The Kia EV9 is £1,155 cheaper to buy. The Kia EV9 is cheaper to charge, roughly £192 a year versus £232 for the Audi Q8 e-tron, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Kia EV9 comes out roughly £1,355 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
What are the Audi Q8 e-tron and Kia EV9 like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 234 miles for the Audi Q8 e-tron and 291 miles for the Kia EV9 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Kia EV9 goes roughly 57 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 24-31 minutes.
Which is easier to park and drive in town, the Audi Q8 e-tron or the Kia EV9?
The Audi Q8 e-tron is the easier car for tight UK car parks: it is 43 mm narrower than the Kia EV9. In a standard 2,400 mm bay that leaves about 463 mm of total clearance for the Audi Q8 e-tron and about 420 mm of total clearance for the Kia EV9.
Which battery will hold up better as a used buy, the Audi Q8 e-tron or the Kia EV9?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Audi Q8 e-tron and 89% for the Kia EV9. That gives the Kia EV9 a modest edge in retained real-world range. Both use NMC-type cells, so for daily use keep the charge limit near 80% to slow degradation. The Audi Q8 e-tron has the longer battery warranty at 8 years, versus 7 for the Kia EV9.
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 Audi Q8 e-tron comparisons
More Kia EV9 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 Audi Q8 e-tron and Kia EV9 rank among the best family EVsWhere the Audi Q8 e-tron and Kia EV9 rank among the best electric SUVsWhere the Audi Q8 e-tron and Kia EV9 rank among the best motorway EVsWhere the Audi Q8 e-tron and Kia EV9 rank among the best city EVsWhere the Audi Q8 e-tron and Kia EV9 rank among the cheapest EVs to runWhere the Audi Q8 e-tron and Kia EV9 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 Audi Q8 e-tron (2023-2025): 50 vs 55, Recalls & What to Pay
A used Audi Q8 e-tron and Q8 Sportback e-tron buyer’s guide: 50 vs 55 quattro, how to tell it from the older e-tron, the brake-servo recall, battery warranty left, real-world range, what to pay and a printable checklist.
GuideBuying a Used Kia EV9 (2023 on): Which Version, Early Faults, Recalls & What to Pay
A used Kia EV9 buyer’s guide: Air, GT-Line or GT-Line S, six or seven seats, the seat-bolt and brake recalls, early electrical faults, the 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 .