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Kia EV6 (2021-2024) vs XPENG G6 (2025)
Selected trimStandard Range 66kWh · 2025Change trim270 mi · 66 kWh · £39,990
At a glance
In this comparison, Kia EV6 leads on motorway range, running costs and city driving, while the XPENG G6 leads on family practicality.
Which should you choose?
Choose the Kia EV6 (2021-2024) if...
- you do long motorway journeys - it has the best estimated real-world range at speed
- you want the lowest running costs - from just 2p per mile on off-peak electricity
- you need the best car for city driving and tight parking
Choose the XPENG G6 (2025) if...
- you have a family - it has the best combination of boot space, safety, and rear legroom
How we reached the recommendation
Verdict
Our take
The Kia EV6 leads in the most categories, but each car here has its strengths.
Value
Kia
6.1
XPENG
6.3
Too close to call
Motorway RangeKia
Kia
7.6
XPENG
5.3
FamilyXPENG
Kia
7.2
XPENG
8.3
Charging
Kia
8.3
XPENG
8.3
Too close to call
Cost Per MileKia
Kia
6.3
XPENG
2.4
City DrivingKia
Kia
3.6
XPENG
3
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.
Size Comparison
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Kia EV6
XPENG G6
Length
Kia EV64,680mm-78mm
XPENG G64,758mm
Width
Kia EV61,880mm-40mm
XPENG G61,920mm
Height
Kia EV61,550mm-100mm
XPENG G61,650mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Kia EV6Air 77.4kWh | XPENG G6Standard Range 66kWh |
|---|---|---|
| Length | 4,680 mm | 4,758 mm |
| Width (mirrors folded) | 1,880 mm (better) | 1,920 mm |
| Width with mirrors out | 2,141 mm | Not available |
| Height | 1,550 mm | 1,650 mm |
| Turning circle | 11.6 m | 11.6 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 520 mm spare (better) | 480 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
Full specifications
| Specification |  Kia EV6 Air 77.4kWh |  XPENG G6 Standard Range 66kWh |
|---|---|---|
| Dimensions | ||
| Length | 4.68m | 4.76m+78mm |
| Width | 1.88m | 1.92m+40mm |
| Width (mirrors) | 2.14m | Not available |
| Height | 1.55m | 1.65m+100mm |
| Wheelbase | 2.90m | 2.89m-10mm |
| Capacity | ||
| Boot (seats up) | 490L | 571L (better) |
| Boot (seats down) | 1300L | 1374L (better) |
| Frunk | 52L | Not available |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 11.6m | 11.6m |
| Kerb Weight | Not available | 2,065kg |
| Towing Capacity | 1,600kg | Not available |
| Electric | ||
| Battery | 77.4kWh (better) | 66kWh |
| Range (WLTP) | 328 mi (better) | 270 mi |
| Max DC Charge | 239kW (better) | 215kW |
| Pricing | ||
| UK MSRP | £40,895 | £39,990 (better) |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2021–2024 | 2025–2025 |
* 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 | Kia EV6Air 77.4kWh | XPENG G6Standard Range 66kWh |
|---|---|---|
| Official range (WLTP) | 328 miles (better) | 270 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 273 miles (better) | 193 miles |
| 10-80% rapid charge time | 18 min | 12 min (better) |
| Max rapid charge rate | 239 kW (better) | 215 kW |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | Not available | 175 Wh/km |
| Usable battery capacity | 77.4 kWh (better) | 65.3 kWh |
| Battery chemistry | NCMA | LFP |
| Battery architecture | 800V | 800V |
| Heat pump | Not standard | Not available |
Driving & everyday use
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 - 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)
Euro NCAP - XPENG G6 Standard Range 66kWh
Tested 2024
Adult Occupant88%
Child Occupant85%
Vulnerable Road Users81%
Safety Assist75%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
Buying options
Get a quote
Kia EV6
Used on AutoTraderLease deals
XPENG G6
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
Kia EV6
- £23,2642023Car360View
- £28,4002023EV ExpertsView
- £28,9002023EV ExpertsView
XPENG G6
No active listings.
Frequently asked questions
Which is cheaper to own over 5 years, the Kia EV6 or the XPENG G6?
The XPENG G6 is £905 cheaper to buy. The Kia EV6 is cheaper to charge, roughly £160 a year versus £192 for the XPENG G6, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the XPENG G6 comes out roughly £745 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
What are the Kia EV6 and XPENG G6 like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 273 miles for the Kia EV6 and 193 miles for the XPENG G6 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Kia EV6 goes roughly 80 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 12-18 minutes.
Which is easier to park and drive in town, the Kia EV6 or the XPENG G6?
The Kia EV6 is the easier car for tight UK car parks: it is 40 mm narrower than the XPENG G6. In a standard 2,400 mm bay that leaves about 520 mm of total clearance for the Kia EV6 and about 480 mm of total clearance for the XPENG G6.
Which battery will hold up better as a used buy, the Kia EV6 or the XPENG G6?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 89% battery health for the Kia EV6 and 90% for the XPENG G6. That is close enough that capacity loss should not decide between them. The XPENG G6's LFP-type pack tolerates daily 100% charging, while the Kia EV6's NMC-type pack lasts longest kept to about 80% for everyday use. The XPENG G6 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 Kia EV6 comparisons
More XPENG G6 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 Kia EV6 and XPENG G6 rank among the best family EVsWhere the Kia EV6 and XPENG G6 rank among the best electric SUVsWhere the Kia EV6 and XPENG G6 rank among the best motorway EVsWhere the Kia EV6 and XPENG G6 rank among the best city EVsWhere the Kia EV6 and XPENG G6 rank among the cheapest EVs to runWhere the Kia EV6 and XPENG G6 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.
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.
GuideBuying a Used XPENG G6 (2025 on): Original vs Updated, Warranty & What to Pay
A used XPENG G6 buyer’s guide: the original 66 kWh and 87.5 kWh cars vs the updated 2026 G6, battery warranty, a young brand and dealer network, real-world range, what owners report, what to pay and a printable checklist.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .