In this comparison, BMW i7 stays competitive across the board, while the BMW iX leads on value for money, motorway range and family practicality.
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Our take
The BMW iX wins almost every category - it's the clear choice unless price is the deciding factor.
See the specification differences behind the verdict, with supporting figures for each advantage.
Compare the key specifications for your selected trims.
Size Comparison
Length
Width
Height
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | BMW i750 xDrive | BMW iXxDrive60 M Sport |
|---|---|---|
| Length | 5,391 mm | 4,965 mm |
| Width (mirrors folded) | 1,950 mm (better) | 1,970 mm |
| Width with mirrors out | 2,192 mm | Not available |
| Height | 1,544 mm | 1,695 mm |
| Turning circle | 13.1 m | 12.8 m (better) |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 450 mm spare (better) | 430 mm spare |
Compare seating, child-seat mounting points, boot space and towing capacity.
Percentile ranks against UK EVs of the same body style.
BMW i7
BMW iX
| Specification | BMW i7 50 xDrive | BMW iX xDrive60 M Sport |
|---|---|---|
| Dimensions | ||
| Length | 5.39m | 4.96m-426mm |
| Width | 1.95m | 1.97m+20mm |
| Width (mirrors) | 2.19m | Not available |
| Height | 1.54m | 1.70m+151mm |
| Wheelbase | 3.21m | 3.00m-215mm |
| Capacity | ||
| Boot (seats up) | 500L | 500L |
| Boot (seats down) | Not available | 1750L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 13.1m | 12.8m (better) |
| Kerb Weight | 2,715kg | Not available |
| Towing Capacity | Not available | 2,500kg (better) |
| Electric | ||
| Battery | Not available | 94.8kWh |
| Range (WLTP) | 452 mi (better) | 426 mi |
| Max DC Charge | 250kW (better) | 195kW |
| Pricing | ||
| UK MSRP | £104,230 | £78,405 (better) |
| Details | ||
| Body Style | Saloon | SUV |
| Available | 2026+ | 2025+ |
* BMW i7: Not yet Euro NCAP tested as of 2026-05. Limited-production / halo / pre-launch / new-brand models are typically rated some time after general sale.
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | BMW i750 xDrive | BMW iXxDrive60 M Sport |
|---|---|---|
| Official range (WLTP) | 452 miles (better) | 426 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 362 miles (better) | 355 miles |
| 10-80% rapid charge time | 34 min (better) | 35 min |
| Max rapid charge rate | 250 kW (better) | 195 kW |
| Home AC charging | 11 kW | Not available |
| Usable battery capacity | Not available | 94.8 kWh |
| Battery chemistry | NMC | NMC |
Compare acceleration, power and drivetrain specifications for the selected trims.
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 i7
50 xDrive
No critic reviews gathered yet for this car.

BMW iX
xDrive60 M Sport
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.
Current pricing and recent used-market behaviour.
Used prices are indicative figures gathered from independent UK dealer listings and change frequently.
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.
BMW i7 50 xDrive
Not yet Euro NCAP tested as of 2026-05. Limited-production / halo / pre-launch / new-brand models are typically rated some time after general sale.
Tested 2025
Check the published battery warranty cover for each selected trim.
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BMW i7
BMW iX
Active inventory from independent UK dealers.
BMW i7
No active listings.
BMW iX
The BMW i7 costs £25,825 more than the BMW iX. For that premium it adds 25 miles more WLTP range and 55 kW faster peak rapid charging. The BMW iX is not just cheaper - it also offers 65 kW more power. On EVcarsguide's combined category scores, the BMW iX comes out ahead overall.
EVcarsguide estimates a real-world motorway range of about 362 miles for the BMW i7 and 355 miles for the BMW iX - 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 34-35 minutes.
The two are within 20 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 450 mm of total clearance for the BMW i7 and about 430 mm of total clearance for the BMW iX.
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the BMW i7 and 84% for the BMW iX. 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. Both batteries carry a 8-year manufacturer warranty.
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 .