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Audi e-tron Sportback vs BMW iX (2021-2025)
Selected trim55 quattro · 2020-23Change trim277 mi · 95 kWh · £79,900
Selected trimxDrive40 · 2021-25Change trim257 mi · 76.6 kWh · £69,905
At a glance
The Audi e-tron Sportback was replaced by the Audi Q8 Sportback e-tron in 2023. Compare the Audi Q8 Sportback e-tron with the BMW iX
In this comparison, Audi e-tron Sportback leads on family practicality, while the BMW iX counters with the lowest price.
Which should you choose?
Choose the Audi e-tron Sportback if...
- you have a family - it has the best combination of boot space, safety, and rear legroom
How we reached the recommendation
Verdict
Our take
The Audi e-tron Sportback edges ahead overall, but it's close - check which categories matter most to you.
Value
Audi
4.2
BMW
4.1
Too close to call
Motorway Range
Audi
3
BMW
3
Too close to call
FamilyAudi
Audi
8.4
BMW
7.8
Charging
Audi
4
BMW
3.7
Too close to call
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Audi e-tron Sportback
55 quattro
- 115 litres more boot space
- 60 kW more power
- 0.6 m tighter turning circle
Key specifications
Compare the key specifications for your selected trims.
| Measure | Audi e-tron Sportback55 quattro | BMW iXxDrive40 |
|---|---|---|
| Price | £79,900 | £69,905 (better) |
| Official range | 277 miles (better) | 257 miles |
| Boot space | 615 L (better) | 500 L |
| 10-80% rapid charge | 30 min (better) | 35 min |
| 0-62 mph | 5.7 sec | 4.6 sec (better) |
Size Comparison
View:
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Audi e-tron Sportback
BMW iX
Length
Audi e-tron Sportback4,901mm-64mm
BMW iX4,965mm
Width
Audi e-tron Sportback1,935mm-35mm
BMW iX1,970mm
Height
Audi e-tron Sportback1,616mm-79mm
BMW iX1,695mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Audi e-tron Sportback55 quattro | BMW iXxDrive40 |
|---|---|---|
| Length | 4,901 mm | 4,965 mm |
| Width (mirrors folded) | 1,935 mm (better) | 1,970 mm |
| Width with mirrors out | 2,189 mm | Not available |
| Height | 1,616 mm | 1,695 mm |
| Turning circle | 12.2 m (better) | 12.8 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 465 mm spare (better) | 430 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Audi e-tron Sportback55 quattro | BMW iXxDrive40 |
|---|---|---|
| Seats | 5 | 5 |
| ISOFIX child-seat points | 2 | Not available |
| Boot space (seats up) | 615 L (better) | 500 L |
| Boot space (seats down) | 1665 L | 1750 L (better) |
| Towing capacity (braked) | 1,800 kg | 2,500 kg (better) |
How each stacks up
Percentile ranks against UK EVs of the same body style.
Audi e-tron Sportback
Not enough peers to make confident percentile claims.
BMW iX
- At 4,965 mm, longer than 90% of SUVs we track.
- Braked towing capacity of 2,500 kg, a stronger tow rating than 90% of SUVs we track.
- 3,000 mm wheelbase, longer than 90% of SUVs we track.
Full specifications
| Specification |  Audi e-tron Sportback 55 quattro |  BMW iX xDrive40 |
|---|---|---|
| Dimensions | ||
| Length | 4.90m | 4.96m+64mm |
| Width | 1.94m | 1.97m+35mm |
| Width (mirrors) | 2.19m | Not available |
| Height | 1.62m | 1.70m+79mm |
| Wheelbase | 2.93m | 3.00m+72mm |
| Ground Clearance | 172mm | Not available |
| Capacity | ||
| Boot (seats up) | 615L (better) | 500L |
| Boot (seats down) | 1665L | 1750L (better) |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 12.2m (better) | 12.8m |
| Kerb Weight | 2,555kg | Not available |
| Towing Capacity | 1,800kg | 2,500kg (better) |
| Electric | ||
| Battery | 95kWh (better) | 76.6kWh |
| Range (WLTP) | 277 mi (better) | 257 mi |
| Max DC Charge | 150kW | 150kW |
| Pricing | ||
| UK MSRP | £79,900 | £69,905 (better) |
| Details | ||
| Body Style | Coupe SUV | SUV |
| Available | 2020–2023 | 2021–2025 |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Audi e-tron Sportback55 quattro | BMW iXxDrive40 |
|---|---|---|
| Official range (WLTP) | 277 miles (better) | 257 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 231 miles (better) | 214 miles |
| 10-80% rapid charge time | 30 min (better) | 35 min |
| Max rapid charge rate | 150 kW | 150 kW |
| Home AC charging | 11 kW | 11 kW |
| Usable battery capacity | 86 kWh (better) | 71 kWh |
| Battery chemistry | NMC | NMC |
| Battery architecture | 400V | Not available |
| Heat pump | Standard | Not available |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Audi e-tron Sportback55 quattro | BMW iXxDrive40 |
|---|---|---|
| 0-62 mph | 5.7 sec | 4.6 sec (better) |
| Power | 300 kW (better) | 240 kW |
| Torque | 664 Nm | 765 Nm (better) |
| Drivetrain | AWD | AWD |
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.
Audi e-tron Sportback
55 quattro
BMW iX
xDrive40
No critic reviews gathered yet for this car.
Watch the reviews
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.
Prices & deals
New and used prices
Current pricing and recent used-market behaviour.
| Measure | Audi e-tron Sportback55 quattro | BMW iXxDrive40 |
|---|---|---|
| Used market price from | £18,049 | £26,350 |
| Average used price | £21,790 | £28,990 |
| Recent used-price trend | Down 19.6% over ~6 months | Up 20% over ~6 months |
Used prices are indicative figures gathered from independent UK dealer listings and change frequently.
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 - Audi e-tron Sportback 55 quattro
Tested 2019
Adult Occupant91%
Child Occupant85%
Vulnerable Road Users71%
Safety Assist76%
Full result on euroncap.com (opens in new tab)
Euro NCAP - BMW iX xDrive40
Tested 2025
Adult Occupant91%
Child Occupant87%
Vulnerable Road Users73%
Safety Assist81%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | Audi e-tron Sportback55 quattro | BMW iXxDrive40 |
|---|---|---|
| Battery warranty | 8 years | 8 years |
| Battery warranty distance | 160,000 km | 160,934 km (better) |
What owners say
Aggregated from UK owner forums and communities - the things you only learn after living with the car.
Audi e-tron Sportback
55 quattro
Owners love
- Excellent build quality and high-quality interior materials throughout the vehicle
- Smooth, quiet, and comfortable driving experience with effective air suspension
- Strong performance with powerful acceleration and responsive handling
Watch out for
- Range drops significantly in winter conditions, falling to around 160 miles without preconditioning
- Premium pricing at £79,900+ entry level with some standard features available only on higher trims
- High kerb weight of 2.5 tonnes may limit efficiency potential compared to lighter competitors
Owner tips
- Plan longer trips around fast charger networks like Ionity and use the Audi App for real-time availability
- Charge regularly at home (every 8 days) to maintain battery health and reduce charging anxiety
BMW iX
xDrive40
Owners love
- Owners praise the comfort and refinement, especially with air suspension, and the roomy cabin.
- Long-term owners report few faults and little battery wear, with one reporting 3% after two and a half years.
- The xDrive50 is reported to meet or beat its official range in summer, and rapid charging is fast and dependable.
Watch out for
- The xDrive40's smaller battery is the main complaint: owners report about 170 to 230 miles in real use, less in winter.
- Several owners report insurers declining to renew iX policies or quoting much higher premiums.
- Owners report fast tyre wear on some cars, and the turning circle is large without rear-wheel steering.
Owner tips
- Choose an xDrive50 if you drive long distances: it has far more range than the xDrive40.
- Get insurance quotes, including from specialist brokers, before you buy.
Buying options
Get a quote
Audi e-tron Sportback
Used on AutoTraderLease deals
BMW iX
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
Audi e-tron Sportback
No active listings.
BMW iX
- £31,6302021Car360View
- £26,3502022Anchor CarsView
Frequently asked questions
Is the Audi e-tron Sportback worth the extra £9,995 over the BMW iX?
The Audi e-tron Sportback costs £9,995 more than the BMW iX. For that premium it adds 115 litres more boot space and 60 kW more power. The BMW iX is not just cheaper - it also offers a 1.1s quicker 0-62mph time. On EVcarsguide's combined category scores, the Audi e-tron Sportback comes out ahead overall.
Which is cheaper to own over 5 years, the Audi e-tron Sportback or the BMW iX?
The BMW iX is £9,995 cheaper to buy. The BMW iX is cheaper to charge, roughly £200 a year versus £232 for the Audi e-tron Sportback, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the BMW iX comes out roughly £10,155 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
What are the Audi e-tron Sportback and BMW iX like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 231 miles for the Audi e-tron Sportback and 214 miles for the BMW iX - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Audi e-tron Sportback goes roughly 17 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 30-35 minutes.
Which is easier to park and drive in town, the Audi e-tron Sportback or the BMW iX?
The Audi e-tron Sportback is the easier car for tight UK car parks: it is 35 mm narrower than the BMW iX. In a standard 2,400 mm bay that leaves about 465 mm of total clearance for the Audi e-tron Sportback and about 430 mm of total clearance for the BMW iX. The Audi e-tron Sportback also turns in a 0.6 m tighter circle, which helps with U-turns and multi-storey ramps.
Which battery will hold up better as a used buy, the Audi e-tron Sportback or the BMW iX?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Audi e-tron Sportback 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.
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.
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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 Audi e-tron Sportback and BMW iX rank among the best family EVsWhere the Audi e-tron Sportback and BMW iX rank among the best motorway EVsWhere the Audi e-tron Sportback and BMW iX rank among the best city EVsWhere the Audi e-tron Sportback and BMW iX rank among the cheapest EVs to runWhere the Audi e-tron Sportback and BMW iX rank among EVs with the biggest bootsWhere the Audi e-tron Sportback and BMW iX rank among Best Used Electric Cars Under £10,000 (UK)
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.
GuideUsed Audi e-tron buyer's guide (2019-2023)
Buying a used Audi e-tron or e-tron Sportback: the 50 and 55 batteries, the free range update for early cars, the battery and brake recalls, what owners report and what to pay in 2026.
GuideBuying a Used BMW iX (2021 on): xDrive40 vs xDrive50, Recalls, Insurance & What to Pay
A used BMW iX buyer’s guide: xDrive40, xDrive50 and M60 against the 2025 xDrive45 and xDrive60, the range gap, battery and airbag recalls, insurance, battery warranty left, 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 .