In this comparison, Audi Q6 Sportback e-tron leads on motorway range, family practicality and charging speed, while the BMW i4 leads on city driving.
Choose the Audi Q6 Sportback e-tron if...
Choose the BMW i4 if...
Our take
The Audi Q6 Sportback e-tron 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.
quattro
Compare the key specifications for your selected trims.
| Measure | Audi Q6 Sportback e-tronquattro | BMW i4eDrive40 M Sport |
|---|---|---|
| Price | £71,475 | £53,405 (better) |
| Official range | 390 miles (better) | 367 miles |
| Boot space | 511 L (better) | 470 L |
| 10-80% rapid charge | 22 min (better) | 31 min |
| 0-62 mph | 5.9 sec | 5.7 sec (better) |
Size Comparison
Length
Width
Height
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Audi Q6 Sportback e-tronquattro | BMW i4eDrive40 M Sport |
|---|---|---|
| Length | 4,771 mm | 4,783 mm |
| Width (mirrors folded) | 1,939 mm | 1,852 mm (better) |
| Width with mirrors out | 2,193 mm | 2,073 mm (better) |
| Height | 1,665 mm | 1,448 mm |
| Turning circle | 12.1 m (better) | 12.5 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 461 mm spare | 548 mm spare (better) |
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Audi Q6 Sportback e-tronquattro | BMW i4eDrive40 M Sport |
|---|---|---|
| Seats | 5 | 5 |
| Boot space (seats up) | 511 L (better) | 470 L |
| Boot space (seats down) | 1373 L (better) | 1290 L |
| Frunk | Not available | 0 L |
| Towing capacity (braked) | 2,000 kg (better) | 1,600 kg |
Percentile ranks against UK EVs of the same body style.
Audi Q6 Sportback e-tron
BMW i4
Not enough peers to make confident percentile claims.
| Specification | Audi Q6 Sportback e-tron quattro | BMW i4 eDrive40 M Sport |
|---|---|---|
| Dimensions | ||
| Length | 4.77m | 4.78m+12mm |
| Width | 1.94m | 1.85m-87mm |
| Width (mirrors) | 2.19m | 2.07m-120mm |
| Height | 1.67m | 1.45m-217mm |
| Wheelbase | 2.89m | 2.86m-33mm |
| Ground Clearance | Not available | 125mm |
| Capacity | ||
| Boot (seats up) | 511L (better) | 470L |
| Boot (seats down) | 1373L (better) | 1290L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 12.1m (better) | 12.5m |
| Kerb Weight | 2,150kg | 2,125kg (better) |
| Towing Capacity | 2,000kg (better) | 1,600kg |
| Electric | ||
| Battery | 100kWh (better) | 83.9kWh |
| Range (WLTP) | 390 mi (better) | 367 mi |
| Max DC Charge | 270kW (better) | 200kW |
| Pricing | ||
| UK MSRP | £71,475 | £53,405 (better) |
| Details | ||
| Body Style | SUV | Saloon |
| Available | 2025+ | 2021–2026 |
* BMW i4: Launch figures. Cars built from July 2024 (facelift) have 81.3 kWh usable, 205 kW DC charging and up to 373 miles WLTP.
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Audi Q6 Sportback e-tronquattro | BMW i4eDrive40 M Sport |
|---|---|---|
| Official range (WLTP) | 390 miles (better) | 367 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 325 miles (better) | 261 miles |
| 10-80% rapid charge time | 22 min (better) | 31 min |
| Max rapid charge rate | 270 kW (better) | 200 kW |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | Not available | 160 Wh/km |
| Usable battery capacity | 94.9 kWh (better) | 80.7 kWh |
| Battery chemistry | NMC | NMC |
| Battery architecture | 800V (better) | 400V |
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Audi Q6 Sportback e-tronquattro | BMW i4eDrive40 M Sport |
|---|---|---|
| 0-62 mph | 5.9 sec | 5.7 sec (better) |
| Power | 285 kW (better) | 250 kW |
| Torque | 485 Nm (better) | 430 Nm |
| Drivetrain | AWD | RWD |
See how UK motoring publications rate each car in their road tests.

Audi Q6 Sportback e-tron
quattro

BMW i4
eDrive40 M Sport
8.8/10
average across 6 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.
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 2024
Tested 2022
Check the published battery warranty cover for each selected trim.
| Measure | Audi Q6 Sportback e-tronquattro | BMW i4eDrive40 M Sport |
|---|---|---|
| Battery warranty | 8 years | 8 years |
| Battery warranty distance | 160,934 km | 160,934 km |
Aggregated from UK owner forums and communities - the things you only learn after living with the car.
Shared watch-outs for both cars
Owners of every car here flag infotainment & software. Worth checking on a test drive whichever you choose.

Audi Q6 Sportback e-tron
quattro

BMW i4
eDrive40 M Sport
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Audi Q6 Sportback e-tron
BMW i4
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Audi Q6 Sportback e-tron
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BMW i4
The Audi Q6 Sportback e-tron costs £18,070 more than the BMW i4. For that premium it adds 70 kW faster peak rapid charging and 35 kW more power. On EVcarsguide's combined category scores, the Audi Q6 Sportback e-tron comes out ahead overall.
The BMW i4 is £18,070 cheaper to buy. Running costs are almost identical - about £176 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the BMW i4 comes out roughly £18,070 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 325 miles for the Audi Q6 Sportback e-tron and 261 miles for the BMW i4 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Audi Q6 Sportback e-tron goes roughly 64 miles further between charging stops. A rapid charge to 80% takes around 22 minutes in the Audi Q6 Sportback e-tron and 31 in the BMW i4, so the Audi Q6 Sportback e-tron loses less time at each stop. That makes the Audi Q6 Sportback e-tron the stronger long-distance car.
The BMW i4 is the easier car for tight UK car parks: it is 87 mm narrower than the Audi Q6 Sportback e-tron. In a standard 2,400 mm bay that leaves about 548 mm of total clearance for the BMW i4 and about 461 mm of total clearance for the Audi Q6 Sportback e-tron. The Audi Q6 Sportback e-tron also turns in a 0.4 m tighter circle, which helps with U-turns and multi-storey ramps.
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Audi Q6 Sportback e-tron and 84% for the BMW i4. 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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GuideA used Audi Q6 e-tron buyer’s guide: the 83 kWh, performance and quattro versions and the Sportback compared, warranty left, the ride and software issues owners report, realistic range, fast charging, what to pay and a printable checklist.
GuideA used BMW i4 buyer’s guide: eDrive35, eDrive40, M50 and M60 compared, the battery recalls on early cars, warranty left, real-world and winter range, rear space, tyres, what to pay and a printable checklist.
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .