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BMW i5 Touring vs Porsche Cayenne
Selected trimeDrive40 M SportChange trim370 mi · 83.9 kWh · £70,045
Selected trimElectricChange trim358 mi · 113 kWh · £83,200
At a glance
In this comparison, BMW i5 Touring leads on motorway range and running costs, while the Porsche Cayenne leads on charging speed.
Best value
Too close to call
Range & charging
Too close to call
Practicality
Too close to call
Which should you choose?
Choose the BMW i5 Touring if...
- you do long motorway journeys - it has the best estimated real-world range at speed
- you want the lowest running costs - from just 1.9p per mile on off-peak electricity
Choose the Porsche Cayenne if...
- you need the fastest charging of these options
How we reached the recommendation
Verdict
Our take
The BMW i5 Touring edges ahead overall, but it's close - check which categories matter most to you.
Value
BMW
6.1
Porsche
5.8
Too close to call
Motorway RangeBMW
BMW
6.7
Porsche
4.9
Family
BMW
9.4
Porsche
9.3
Too close to call
ChargingPorsche
BMW
3
Porsche
8.5
Cost Per MileBMW
BMW
7.3
Porsche
0.3
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Porsche Cayenne
Electric
- 211 litres more boot space
- 185 kW faster rapid charging
- 75 kW more power
- 1.4s quicker 0-62 mph
Key specifications
Compare the key specifications for your selected trims.
| Measure | BMW i5 TouringeDrive40 M Sport | Porsche CayenneElectric |
|---|---|---|
| Price | £70,045 (better) | £83,200 |
| Official range | 370 miles (better) | 358 miles |
| Boot space | 570 L | 781 L (better) |
| 10-80% rapid charge | 30 min | Not available |
| 0-62 mph | 6.1 sec | 4.7 sec (better) |
Size Comparison
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BMW i5 Touring
Porsche Cayenne
Length
BMW i5 Touring5,060mm
Porsche Cayenne4,985mm-75mm
Width
BMW i5 Touring1,900mm-80mm
Porsche Cayenne1,980mm
Height
BMW i5 Touring1,515mm-159mm
Porsche Cayenne1,674mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | BMW i5 TouringeDrive40 M Sport | Porsche CayenneElectric |
|---|---|---|
| Length | 5,060 mm | 4,985 mm |
| Width (mirrors folded) | 1,900 mm (better) | 1,980 mm |
| Width with mirrors out | Not available | 2,199 mm |
| Height | 1,515 mm | 1,674 mm |
| Turning circle | 12.3 m (better) | 12.7 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 500 mm spare (better) | 420 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | BMW i5 TouringeDrive40 M Sport | Porsche CayenneElectric |
|---|---|---|
| Seats | 5 | 5 |
| ISOFIX child-seat points | Not available | 4 |
| Boot space (seats up) | 570 L | 781 L (better) |
| Boot space (seats down) | 1700 L (better) | 1588 L |
| Frunk | Not available | 90 L |
| Towing capacity (braked) | Not available | 2,500 kg |
How each stacks up
Percentile ranks against UK EVs of the same body style.
BMW i5 Touring
- At 5,060 mm, longer than 100% of estate EVs we track.
- 1st-largest boot among estate EVs in our catalogue at 570 L.
- 2,995 mm wheelbase, longer than 100% of estate EVs we track.
Porsche Cayenne
- A 90 L frunk, one of 11 of 232 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 i5 Touring eDrive40 M Sport |  Porsche Cayenne Electric |
|---|---|---|
| Dimensions | ||
| Length | 5.06m | 4.99m-75mm |
| Width | 1.90m | 1.98m+80mm |
| Width (mirrors) | Not available | 2.20m |
| Height | 1.51m | 1.67m+159mm |
| Wheelbase | 3.00m | 3.02m+28mm |
| Capacity | ||
| Boot (seats up) | 570L | 781L (better) |
| Boot (seats down) | 1700L (better) | 1588L |
| Frunk | Not available | 90L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 12.3m (better) | 12.7m |
| Kerb Weight | 2,255kg (better) | 2,512kg |
| Towing Capacity | Not available | 2,500kg |
| Electric | ||
| Battery | 83.9kWh | 113kWh (better) |
| Range (WLTP) | 370 mi (better) | 358 mi |
| Max DC Charge | 205kW | 390kW (better) |
| Pricing | ||
| UK MSRP | £70,045 (better) | £83,200 |
| Details | ||
| Body Style | Estate | SUV |
| Available | 2024+ | 2025+ |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | BMW i5 TouringeDrive40 M Sport | Porsche CayenneElectric |
|---|---|---|
| Official range (WLTP) | 370 miles (better) | 358 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 308 miles (better) | 234 miles |
| 10-80% rapid charge time | 30 min | Not available |
| Max rapid charge rate | 205 kW | 390 kW (better) |
| Home AC charging | 22 kW (better) | 11 kW |
| Energy consumption | Not available | 221 Wh/km |
| Usable battery capacity | 81.2 kWh | 100 kWh (better) |
| Battery chemistry | NMC | NMC |
| Battery architecture | 400V | 800V (better) |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | BMW i5 TouringeDrive40 M Sport | Porsche CayenneElectric |
|---|---|---|
| 0-62 mph | 6.1 sec | 4.7 sec (better) |
| Power | 250 kW | 325 kW (better) |
| Torque | 400 Nm | 835 Nm (better) |
| Drivetrain | RWD | AWD |
What the critics say
See how UK motoring publications rate each car in their road tests.
BMW i5 Touring
eDrive40 M Sport
Porsche Cayenne
Electric
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
BMW i5 Touring
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 i5 Touring eDrive40 M Sport
Tested 2025
Adult Occupant89%
Child Occupant85%
Vulnerable Road Users86%
Safety Assist78%
Full result on euroncap.com (opens in new tab)
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 i5 TouringeDrive40 M Sport | Porsche CayenneElectric |
|---|---|---|
| Battery warranty | 8 years | Not available |
| Battery warranty distance | 160,934 km | Not available |
Buying options
Get a quote
BMW i5 Touring
Used on AutoTraderLease deals
Porsche Cayenne
Used on AutoTraderLease deals
Frequently asked questions
Is the Porsche Cayenne worth the extra £13,155 over the BMW i5 Touring?
The Porsche Cayenne costs £13,155 more than the BMW i5 Touring. For that premium it adds 185 kW faster peak rapid charging, 211 litres more boot space and 75 kW more power. On EVcarsguide's combined category scores, the BMW i5 Touring comes out ahead overall.
Which is cheaper to own over 5 years, the BMW i5 Touring or the Porsche Cayenne?
The BMW i5 Touring is £13,155 cheaper to buy. The BMW i5 Touring is cheaper to charge, roughly £152 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 BMW i5 Touring comes out roughly £13,595 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 i5 Touring and Porsche Cayenne like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 308 miles for the BMW i5 Touring 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 i5 Touring goes roughly 74 miles further between charging stops.
Which is easier to park and drive in town, the BMW i5 Touring or the Porsche Cayenne?
The BMW i5 Touring is the easier car for tight UK car parks: it is 80 mm narrower than the Porsche Cayenne. In a standard 2,400 mm bay that leaves about 500 mm of total clearance for the BMW i5 Touring and about 420 mm of total clearance for the Porsche Cayenne. The BMW i5 Touring 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 i5 Touring or the Porsche Cayenne?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the BMW i5 Touring 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 i5 Touring comparisons
More Porsche Cayenne 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 i5 Touring and Porsche Cayenne rank among the best family EVsWhere the BMW i5 Touring and Porsche Cayenne rank among long-range EVsWhere the BMW i5 Touring and Porsche Cayenne rank among the best motorway EVsWhere the BMW i5 Touring and Porsche Cayenne rank among the best city EVsWhere the BMW i5 Touring and Porsche Cayenne rank among the cheapest EVs to runWhere the BMW i5 Touring 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 .