In this comparison, BMW iX3 leads on motorway range, family practicality and city driving, while the Hyundai IONIQ 6 leads on running costs.
Choose the BMW iX3 if...
Choose the Hyundai IONIQ 6 if...
Our take
The BMW iX3 leads in the most categories, but each car here has its strengths.
Too close to call
Too close to call
See the specification differences behind the verdict, with supporting figures for each advantage.
Compare the key specifications for your selected trims.
| Measure | BMW iX340 | Hyundai IONIQ 6Long Range RWD |
|---|---|---|
| Price | £53,250 | £47,050 (better) |
| Official range | 395 miles (better) | 339 miles |
| Boot space | 520 L (better) | 401 L |
| 10-80% rapid charge | 21 min | 18 min (better) |
| 0-62 mph | 6 sec (better) | 7.4 sec |
Size Comparison
Length
Width
Height
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | BMW iX340 | Hyundai IONIQ 6Long Range RWD |
|---|---|---|
| Length | 4,782 mm | 4,855 mm |
| Width (mirrors folded) | 1,895 mm | 1,880 mm (better) |
| Width with mirrors out | 2,093 mm (better) | 2,141 mm |
| Height | 1,635 mm | 1,495 mm |
| Turning circle | 12.1 m | 12 m (better) |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 505 mm spare | 520 mm spare (better) |
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | BMW iX340 | Hyundai IONIQ 6Long Range RWD |
|---|---|---|
| Seats | Not available | 5 |
| Boot space (seats up) | 520 L (better) | 401 L |
| Boot space (seats down) | 1750 L (better) | 1370 L |
| Frunk | 58 L (better) | 45 L |
| Towing capacity (braked) | Not available | 1,500 kg |
Percentile ranks against UK EVs of the same body style.
BMW iX3
Hyundai IONIQ 6
| Specification | BMW iX3 40 | Hyundai IONIQ 6 Long Range RWD |
|---|---|---|
| Dimensions | ||
| Length | 4.78m | 4.86m+73mm |
| Width | 1.90m | 1.88m-15mm |
| Width (mirrors) | 2.09m | 2.14m+48mm |
| Height | 1.64m | 1.50m-140mm |
| Wheelbase | 2.90m | 2.95m+54mm |
| Capacity | ||
| Boot (seats up) | 520L (better) | 401L |
| Boot (seats down) | 1750L (better) | 1370L |
| Frunk | 58L (better) | 45L |
| Seats | Not available | 5 |
| Practicality | ||
| Turning Circle | 12.1m | 12m (better) |
| Kerb Weight | 2,200kg | 1,948kg (better) |
| Towing Capacity | Not available | 1,500kg |
| Electric | ||
| Battery | 82.6kWh (better) | 77.4kWh |
| Range (WLTP) | 395 mi (better) | 339 mi |
| Max DC Charge | 300kW | 350kW (better) |
| Pricing | ||
| UK MSRP | £53,250 | £47,050 (better) |
| Details | ||
| Body Style | SUV | Saloon |
| Available | 2026+ | 2022+ |
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | BMW iX340 | Hyundai IONIQ 6Long Range RWD |
|---|---|---|
| Official range (WLTP) | 395 miles (better) | 339 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 293 miles (better) | 282 miles |
| 10-80% rapid charge time | 21 min | 18 min (better) |
| Max rapid charge rate | 300 kW | 350 kW (better) |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | 146 Wh/km | Not available |
| Usable battery capacity | 82.6 kWh (better) | 77.4 kWh |
| Battery chemistry | Not available | NCMA |
| Battery architecture | 800V | 800V |
| Heat pump | Not available | Standard |
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | BMW iX340 | Hyundai IONIQ 6Long Range RWD |
|---|---|---|
| 0-62 mph | 6 sec (better) | 7.4 sec |
| Power | 235 kW (better) | 168 kW |
| Torque | 500 Nm (better) | 350 Nm |
| Drivetrain | RWD | RWD |
See how UK motoring publications rate each car in their road tests.

BMW iX3
40

Hyundai IONIQ 6
Long Range RWD
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.
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.
Tested 2026
Tested 2022
Check the published battery warranty cover for each selected trim.
| Measure | BMW iX340 | Hyundai IONIQ 6Long Range RWD |
|---|---|---|
| Battery warranty | Not available | 8 years |
| Battery warranty distance | Not available | 160,934 km |
Get a quote
BMW iX3
Hyundai IONIQ 6
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BMW iX3
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Hyundai IONIQ 6
The BMW iX3 costs £6,200 more than the Hyundai IONIQ 6. For that premium it adds 56 miles more WLTP range, 119 litres more boot space and 67 kW more power. The Hyundai IONIQ 6 is not just cheaper - it also offers 50 kW faster peak rapid charging. On EVcarsguide's combined category scores, the BMW iX3 comes out ahead overall.
The Hyundai IONIQ 6 is £6,200 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 Hyundai IONIQ 6 comes out roughly £6,240 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
EVcarsguide estimates a real-world motorway range of about 293 miles for the BMW iX3 and 282 miles for the Hyundai IONIQ 6 - 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 18-21 minutes.
The two are within 15 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 505 mm of total clearance for the BMW iX3.
Visit the full model pages for owner feedback, expert reviews, used prices and battery-health information.
Compare similarly sized and priced electric cars before finalising your shortlist.
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EVcarsguide scores every verified EV on price, range, family use and running costs. Here is where this pair appears.
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Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .