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BMW iX3 (2021-2025) vs XPENG G6
Selected trimPremier Edition · 2021Change trim279 mi · 80 kWh · £58,850
Selected trimStandard RangeChange trim292 mi · 68.5 kWh · £39,990
At a glance
In this comparison, BMW iX3 stays competitive across the board, while the XPENG G6 leads on value for money, motorway range and family practicality.
Which should you choose?
Choose the XPENG G6 if...
- you want the most for your money - best overall spec per pound
- you do long motorway journeys - it has the best estimated real-world range at speed
- you have a family - it has the best combination of boot space, safety, and rear legroom
- you need the fastest charging of these options
- you need the best car for city driving and tight parking
How we reached the recommendation
Verdict
Our take
The XPENG G6 wins almost every category - it's the clear choice unless price is the deciding factor.
ValueXPENG
BMW
4.7
XPENG
6.6
Motorway RangeXPENG
BMW
2.2
XPENG
5.3
FamilyXPENG
BMW
7.6
XPENG
8.3
ChargingXPENG
BMW
3.8
XPENG
8.9
City DrivingXPENG
BMW
2.3
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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BMW iX3
XPENG G6
Length
BMW iX34,734mm-24mm
XPENG G64,758mm
Width
BMW iX31,891mm-29mm
XPENG G61,920mm
Height
BMW iX31,668mm
XPENG G61,650mm-18mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
How each stacks up
Percentile ranks against UK EVs of the same body style.
BMW iX3
Not enough peers to make confident percentile claims.
XPENG G6
- Peak DC charging of 382 kW, faster than 95% of SUVs in our catalogue.
- Boot space of 571 L is bigger than 85% of SUVs we track.
Full specifications
| Specification |  BMW iX3 Premier Edition |  XPENG G6 Standard Range |
|---|---|---|
| Dimensions | ||
| Length | 4.73m | 4.76m+24mm |
| Width | 1.89m | 1.92m+29mm |
| Height | 1.67m | 1.65m-18mm |
| Wheelbase | 2.86m | 2.89m+26mm |
| Ground Clearance | 179mm | Not available |
| Capacity | ||
| Boot (seats up) | 510L | 571L (better) |
| Boot (seats down) | 1560L (better) | 1374L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 12.1m | 11.6m (better) |
| Kerb Weight | 2,260kg | 2,065kg (better) |
| Towing Capacity | 750kg | Not available |
| Electric | ||
| Battery | 80kWh (better) | 68.5kWh |
| Range (WLTP) | 279 mi | 292 mi (better) |
| Max DC Charge | 150kW | 382kW (better) |
| Pricing | ||
| UK MSRP | £58,850 | £39,990 (better) |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2021–2021 | 2026+ |
* BMW iX3: Euro NCAP applied its 2017 BMW X3 rating to the iX3 after extra checks in 2021. That rating expired on 1 January 2024.
* BMW iX3: WLTP range on 20-inch wheels; the 19-inch M Sport is rated a little higher.
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | BMW iX3Premier Edition | XPENG G6Standard Range |
|---|---|---|
| Official range (WLTP) | 279 miles | 292 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 196 miles (better) | 193 miles |
| 10-80% rapid charge time | 34 min | 12 min (better) |
| Max rapid charge rate | 150 kW | 382 kW (better) |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | 195 Wh/km | 175 Wh/km (better) |
| Usable battery capacity | 74 kWh (better) | 68.5 kWh |
| Battery chemistry | NMC | LFP |
| 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.
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.
BMW iX3
Premier Edition
No critic reviews gathered yet for this car.
XPENG G6
Standard Range
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 - BMW iX3 Premier Edition
Tested 2017
Adult Occupant93%
Child Occupant84%
Vulnerable Road Users70%
Safety Assist58%
Full result on euroncap.com (opens in new tab)
Euro NCAP - XPENG G6 Standard Range
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
BMW iX3
Used on AutoTraderLease deals
XPENG G6
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
BMW iX3
- £29,6632021Car360View
XPENG G6
No active listings.
Frequently asked questions
Is the BMW iX3 worth the extra £18,860 over the XPENG G6?
The BMW iX3 costs £18,860 more than the XPENG G6. On the headline specs that premium buys little measurable advantage - the two are closely matched on range, charging and space. The XPENG G6 is not just cheaper - it also offers 232 kW faster peak rapid charging, 61 litres more boot space and lower energy use, 175 versus 195 Wh/km. On EVcarsguide's combined category scores, the XPENG G6 comes out ahead overall.
Which is cheaper to own over 5 years, the BMW iX3 or the XPENG G6?
The XPENG G6 is £18,860 cheaper to buy. Running costs are almost identical - about £192 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the XPENG G6 comes out roughly £18,980 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
What are the BMW iX3 and XPENG G6 like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 196 miles for the BMW iX3 and 193 miles for the XPENG G6 - effectively matched, and both well below their WLTP figures because sustained high speed is the hardest case for an EV. A rapid charge to 80% takes around 34 minutes in the BMW iX3 and 12 in the XPENG G6, so the XPENG G6 loses less time at each stop.
Which is easier to park and drive in town, the BMW iX3 or the XPENG G6?
The two are within 29 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 509 mm of total clearance for the BMW iX3 and about 480 mm of total clearance for the XPENG G6. The XPENG G6 also turns in a 0.5 m tighter circle, which helps with U-turns and multi-storey ramps.
Which battery will hold up better as a used buy, the BMW iX3 or the XPENG G6?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the BMW iX3 and 90% for the XPENG G6. That gives the XPENG G6 a modest edge in retained real-world range. The XPENG G6's LFP-type pack tolerates daily 100% charging, while the BMW iX3'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 BMW iX3 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 BMW iX3 and XPENG G6 rank among the best family EVsWhere the BMW iX3 and XPENG G6 rank among the best electric SUVsWhere the BMW iX3 and XPENG G6 rank among the best motorway EVsWhere the BMW iX3 and XPENG G6 rank among the best city EVsWhere the BMW iX3 and XPENG G6 rank among the cheapest EVs to runWhere the BMW iX3 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.
GuideBuying a Used BMW iX3 (2021-2025): Premier Edition or M Sport, Recalls, Range & What to Check
A used BMW iX3 (2021-2025) buyer’s guide: Premier Edition and M Sport trims compared, the battery recalls, warranty left, real-world and winter range, the 750 kg towing limit, 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 .