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BMW i7 (2022-2026) vs Porsche Cayenne
Selected trimxDrive60 · 2022-26Change trim388 mi · 105.7 kWh · £110,545
Selected trimElectricChange trim358 mi · 113 kWh · £83,200
At a glance
In this comparison, BMW i7 stays competitive across the board, while the Porsche Cayenne leads on value for money, family practicality and charging speed.
Which should you choose?
Choose the Porsche Cayenne if...
- you want the most for your money - best overall spec per pound
- you have a family - it has the best combination of boot space, safety, and rear legroom
- you need the fastest charging of these options
How we reached the recommendation
Verdict
Our take
The Porsche Cayenne wins almost every category - it's the clear choice unless price is the deciding factor.
ValuePorsche
BMW
3.8
Porsche
5.8
Motorway Range
BMW
4.9
Porsche
4.9
Too close to call
FamilyPorsche
BMW
3.6
Porsche
9.3
ChargingPorsche
BMW
2.9
Porsche
8.5
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Porsche Cayenne
Electric
- £27,345 cheaper
- 281 litres more boot space
- 195 kW faster rapid charging
- 0.4 m tighter turning circle
- 2500 kg more towing capacity
Key specifications
Compare the key specifications for your selected trims.
| Measure | BMW i7xDrive60 | Porsche CayenneElectric |
|---|---|---|
| Price | £110,545 | £83,200 (better) |
| Official range | 388 miles (better) | 358 miles |
| Boot space | 500 L | 781 L (better) |
| 10-80% rapid charge | 34 min | Not available |
| 0-62 mph | 4.7 sec | 4.7 sec |
Size Comparison
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BMW i7
Porsche Cayenne
Length
BMW i75,391mm
Porsche Cayenne4,985mm-406mm
Width
BMW i71,950mm-30mm
Porsche Cayenne1,980mm
Height
BMW i71,544mm-130mm
Porsche Cayenne1,674mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | BMW i7xDrive60 | Porsche CayenneElectric |
|---|---|---|
| Length | 5,391 mm | 4,985 mm |
| Width (mirrors folded) | 1,950 mm (better) | 1,980 mm |
| Width with mirrors out | 2,192 mm (better) | 2,199 mm |
| Height | 1,544 mm | 1,674 mm |
| Turning circle | 13.1 m | 12.7 m (better) |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 450 mm spare (better) | 420 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | BMW i7xDrive60 | Porsche CayenneElectric |
|---|---|---|
| Seats | 5 | 5 |
| ISOFIX child-seat points | Not available | 4 |
| Boot space (seats up) | 500 L | 781 L (better) |
| Boot space (seats down) | Not available | 1588 L |
| Frunk | Not available | 90 L |
| Towing capacity (braked) | 0 kg | 2,500 kg (better) |
How each stacks up
Percentile ranks against UK EVs of the same body style.
BMW i7
- At 5,391 mm, longer than 95% of saloon EVs we track.
- 3,215 mm wheelbase, longer than 95% of saloon EVs we track.
Porsche Cayenne
- A 90 L frunk, one of 11 of 233 UK EVs in our catalogue with a front boot of 90 L or more.
- 358 mile WLTP range, longer than 80% of SUVs we track.
- At 4,985 mm, longer than 90% of SUVs we track.
Full specifications
| Specification |  BMW i7 xDrive60 |  Porsche Cayenne Electric |
|---|---|---|
| Dimensions | ||
| Length | 5.39m | 4.99m-406mm |
| Width | 1.95m | 1.98m+30mm |
| Width (mirrors) | 2.19m | 2.20m+7mm |
| Height | 1.54m | 1.67m+130mm |
| Wheelbase | 3.21m | 3.02m-192mm |
| Capacity | ||
| Boot (seats up) | 500L | 781L (better) |
| Boot (seats down) | Not available | 1588L |
| Frunk | Not available | 90L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 13.1m | 12.7m (better) |
| Kerb Weight | 2,715kg | 2,512kg (better) |
| Towing Capacity | Not available | 2,500kg (better) |
| Electric | ||
| Battery | 105.7kWh | 113kWh (better) |
| Range (WLTP) | 388 mi (better) | 358 mi |
| Max DC Charge | 195kW | 390kW (better) |
| Pricing | ||
| UK MSRP | £110,545 | £83,200 (better) |
| Details | ||
| Body Style | Saloon | SUV |
| Available | 2022–2026 | 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.
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | BMW i7xDrive60 | Porsche CayenneElectric |
|---|---|---|
| Official range (WLTP) | 388 miles (better) | 358 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 323 miles (better) | 234 miles |
| 10-80% rapid charge time | 34 min | Not available |
| Max rapid charge rate | 195 kW | 390 kW (better) |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | Not available | 221 Wh/km |
| Usable battery capacity | 101.7 kWh (better) | 100 kWh |
| Battery chemistry | NMC | NMC |
| Battery architecture | Not available | 800V |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | BMW i7xDrive60 | Porsche CayenneElectric |
|---|---|---|
| 0-62 mph | 4.7 sec | 4.7 sec |
| Power | 400 kW (better) | 325 kW |
| Torque | Not available | 835 Nm |
| Drivetrain | AWD | AWD |
What the critics say
See how UK motoring publications rate each car in their road tests.
BMW i7
xDrive60
8.4/10
average across 5 reviews
- DrivingElectric4.5/5
- Autocar4.5/5
- Electrifying.com8/10
Porsche Cayenne
Electric
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
BMW i7
All 3 videos
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 i7 xDrive60
BMW i7 xDrive60
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.
Euro NCAP - Porsche Cayenne Electric
Tested 2025
Adult Occupant91%
Child Occupant89%
Vulnerable Road Users81%
Safety Assist79%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | BMW i7xDrive60 | Porsche CayenneElectric |
|---|---|---|
| Battery warranty | 8 years | Not available |
| Battery warranty distance | 160,934 km | Not available |
What owners say
Aggregated from UK owner forums and communities - the things you only learn after living with the car.
BMW i7
xDrive60
Owners love
- Exceptionally smooth, quiet and comfortable, with standout rear-seat luxury.
- Air suspension and rear-wheel steering make it feel smaller than it is, with a good turning circle.
- Owners report over 300 miles of real range, so charging stops are rare on long trips.
Watch out for
- At about 5.4 metres long it is hard to park in UK spaces and multi-storey car parks.
- The styling divides opinion sharply.
- Rapid charging, at up to 195 kW, is slower than some rivals.
Owner tips
- Measure your garage and regular parking spaces before you buy.
- Check which options the car has: equipment varies widely and decides much of the price.
Porsche Cayenne
Electric
Owners love
- Exceptional steering feel and chassis feedback rival the Taycan, delivering genuine driver connection despite the 2.6-tonne weight
- Impressive performance with 1,156hp and 2.5-second 0-62mph acceleration, plus 383-mile range that matches the efficiency of less powerful variants
- Active air suspension provides excellent body control and stability, enhancing both comfort and performance capabilities
Watch out for
- Styling is divisive, with owners describing the front as 'frog-like' and the rear as generic or lacking Porsche identity compared to petrol models
- High price of £130,990 represents a £50,000 premium over the standard Electric for performance gains that may feel excessive in daily use
- Synthetic V8 rumble sound is criticized as artificial and unconvincing despite technical competence
Owner tips
- Test Dark Orange Metallic paint in person, as color selection dramatically transforms perceived design appeal versus standard gray or black
- Consider the standard Cayenne Electric if maximum power isn't essential, as it achieves nearly identical range for significantly less cost
Buying options
Get a quote
BMW i7
Used on AutoTraderLease deals
Porsche Cayenne
Used on AutoTraderLease deals
Frequently asked questions
Is the BMW i7 worth the extra £27,345 over the Porsche Cayenne?
The BMW i7 costs £27,345 more than the Porsche Cayenne. For that premium it adds 30 miles more WLTP range and 75 kW more power. The Porsche Cayenne is not just cheaper - it also offers 195 kW faster peak rapid charging and 281 litres more boot space. On EVcarsguide's combined category scores, the Porsche Cayenne comes out ahead overall.
Which is cheaper to own over 5 years, the BMW i7 or the Porsche Cayenne?
The Porsche Cayenne is £27,345 cheaper to buy. The BMW i7 is cheaper to charge, roughly £184 a year versus £240 for the Porsche Cayenne, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Porsche Cayenne comes out roughly £27,065 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 i7 and Porsche Cayenne like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 323 miles for the BMW i7 and 234 miles for the Porsche Cayenne - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The BMW i7 goes roughly 89 miles further between charging stops.
Which is easier to park and drive in town, the BMW i7 or the Porsche Cayenne?
The BMW i7 is the easier car for tight UK car parks: it is 30 mm narrower than the Porsche Cayenne. In a standard 2,400 mm bay that leaves about 450 mm of total clearance for the BMW i7 and about 420 mm of total clearance for the Porsche Cayenne. The Porsche Cayenne also turns in a 0.4 m tighter circle, which helps with U-turns and multi-storey ramps.
Which battery will hold up better as a used buy, the BMW i7 or the Porsche Cayenne?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the BMW i7 and 84% for the Porsche Cayenne. 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.
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 i7 comparisons
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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 i7 and Porsche Cayenne rank among the best family EVsWhere the BMW i7 and Porsche Cayenne rank among long-range EVsWhere the BMW i7 and Porsche Cayenne rank among the best motorway EVsWhere the BMW i7 and Porsche Cayenne rank among the best city EVsWhere the BMW i7 and Porsche Cayenne rank among the cheapest EVs to runWhere the BMW i7 and Porsche Cayenne 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.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .