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Audi Q8 e-tron vs BYD Sealion 7
Selected trim50 quattro · 2023-25Change trim281 mi · 95 kWh · £67,800
Selected trimComfortChange trim300 mi · 82.5 kWh · £44,990
At a glance
In this comparison, Audi Q8 e-tron stays competitive across the board, while the BYD Sealion 7 leads on value for money and charging speed.
Which should you choose?
Choose the BYD Sealion 7 if...
- you want the most for your money - best overall spec per pound
- you need the fastest charging of these options
How we reached the recommendation
Verdict
Our take
The BYD Sealion 7 leads in the most categories, but each car here has its strengths.
ValueBYD
Audi
4.8
BYD
6
Motorway Range
Audi
3
BYD
3.1
Too close to call
Family
Audi
7.8
BYD
8
Too close to call
ChargingBYD
Audi
4
BYD
5.9
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Key specifications
Compare the key specifications for your selected trims.
| Measure | Audi Q8 e-tron50 quattro | BYD Sealion 7Comfort |
|---|---|---|
| Price | £67,800 | £44,990 (better) |
| Official range | 281 miles | 300 miles (better) |
| Boot space | 569 L (better) | 520 L |
| 10-80% rapid charge | 31 min | 24 min (better) |
| 0-62 mph | 5.6 sec (better) | 6.7 sec |
Size Comparison
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Audi Q8 e-tron
BYD Sealion 7
Length
Audi Q8 e-tron4,915mm
BYD Sealion 74,830mm-85mm
Width
Audi Q8 e-tron1,937mm
BYD Sealion 71,925mm-12mm
Height
Audi Q8 e-tron1,633mm
BYD Sealion 71,620mm-13mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Audi Q8 e-tron50 quattro | BYD Sealion 7Comfort |
|---|---|---|
| Length | 4,915 mm | 4,830 mm |
| Width (mirrors folded) | 1,937 mm | 1,925 mm (better) |
| Width with mirrors out | 2,189 mm | 2,189 mm |
| Height | 1,633 mm | 1,620 mm |
| Turning circle | 12.2 m | 11.7 m (better) |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 463 mm spare | 475 mm spare (better) |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Audi Q8 e-tron50 quattro | BYD Sealion 7Comfort |
|---|---|---|
| Seats | 5 | 5 |
| ISOFIX child-seat points | 2 | Not available |
| Boot space (seats up) | 569 L (better) | 520 L |
| Boot space (seats down) | 1637 L | 1789 L (better) |
| Frunk | Not available | 58 L |
| Towing capacity (braked) | 1,800 kg (better) | 750 kg |
How each stacks up
Percentile ranks against UK EVs of the same body style.
Audi Q8 e-tron
- At 4,915 mm, longer than 90% of SUVs we track.
- Boot space of 569 L is bigger than 85% of SUVs we track.
BYD Sealion 7
- One of 33 of 232 UK EVs in our catalogue with V2L (vehicle-to-load) support.
- At 4,830 mm, longer than 80% of SUVs we track.
Full specifications
| Specification |  Audi Q8 e-tron 50 quattro |  BYD Sealion 7 Comfort |
|---|---|---|
| Dimensions | ||
| Length | 4.92m | 4.83m-85mm |
| Width | 1.94m | 1.93m-12mm |
| Width (mirrors) | 2.19m | 2.19m |
| Height | 1.63m | 1.62m-13mm |
| Wheelbase | 2.93m | 2.93m+2mm |
| Ground Clearance | 172mm | 157mm-15mm |
| Capacity | ||
| Boot (seats up) | 569L (better) | 520L |
| Boot (seats down) | 1637L | 1789L (better) |
| Frunk | Not available | 58L |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 12.2m | 11.7m (better) |
| Kerb Weight | 2,595kg | 2,225kg (better) |
| Towing Capacity | 1,800kg (better) | 750kg |
| Electric | ||
| Battery | 95kWh (better) | 82.5kWh |
| Range (WLTP) | 281 mi | 300 mi (better) |
| Max DC Charge | 150kW | 150kW |
| Pricing | ||
| UK MSRP | £67,800 | £44,990 (better) |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2023–2025 | 2025+ |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Audi Q8 e-tron50 quattro | BYD Sealion 7Comfort |
|---|---|---|
| Official range (WLTP) | 281 miles | 300 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 234 miles (better) | 204 miles |
| 10-80% rapid charge time | 31 min | 24 min (better) |
| Max rapid charge rate | 150 kW | 150 kW |
| Home AC charging | 11 kW | 11 kW |
| Energy consumption | Not available | 199 Wh/km |
| Usable battery capacity | 89 kWh (better) | 82.5 kWh |
| Battery chemistry | NMC | LFP |
| Battery architecture | 400V | Not available |
| Heat pump | Standard | Standard |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Audi Q8 e-tron50 quattro | BYD Sealion 7Comfort |
|---|---|---|
| 0-62 mph | 5.6 sec (better) | 6.7 sec |
| Power | 250 kW (better) | 230 kW |
| Torque | 664 Nm (better) | 380 Nm |
| Drivetrain | AWD | RWD |
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 Q8 e-tron
50 quattro
No critic reviews gathered yet for this car.
BYD Sealion 7
Comfort
6.6/10
average across 6 reviews
- Parkers3.9/5
- Auto Express3.5/5
- Electrifying.com7/10
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 Q8 e-tron50 quattro | BYD Sealion 7Comfort |
|---|---|---|
| Used market price from | £26,718 | £30,211 |
| Average used price | £35,973 | £30,993 |
| Recent used-price trend | Down 16.7% over ~6 months | Up 11.3% 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 Q8 e-tron 50 quattro
Tested 2019
Adult Occupant91%
Child Occupant85%
Vulnerable Road Users71%
Safety Assist76%
Euro NCAP - BYD Sealion 7 Comfort
Tested 2025
Adult Occupant87%
Child Occupant93%
Vulnerable Road Users76%
Safety Assist79%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | Audi Q8 e-tron50 quattro | BYD Sealion 7Comfort |
|---|---|---|
| Battery warranty | 8 years | 8 years |
| Battery warranty distance | 160,000 km | 250,000 km (better) |
Buying options
Get a quote
Audi Q8 e-tron
Used on AutoTraderLease deals
BYD Sealion 7
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
Audi Q8 e-tron
- £43,2992023Car360View
- £39,7912024Car360View
- £39,6082024Car360View
BYD Sealion 7
No active listings.
Frequently asked questions
Is the Audi Q8 e-tron worth the extra £22,810 over the BYD Sealion 7?
The Audi Q8 e-tron costs £22,810 more than the BYD Sealion 7. For that premium it adds a 1.1s quicker 0-62mph time. On EVcarsguide's combined category scores, the BYD Sealion 7 comes out ahead overall.
Which is cheaper to own over 5 years, the Audi Q8 e-tron or the BYD Sealion 7?
The BYD Sealion 7 is £22,810 cheaper to buy. Running costs are almost identical - about £216 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the BYD Sealion 7 comes out roughly £22,890 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 Q8 e-tron and BYD Sealion 7 like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 234 miles for the Audi Q8 e-tron and 204 miles for the BYD Sealion 7 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Audi Q8 e-tron goes roughly 30 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 24-31 minutes.
Which is easier to park and drive in town, the Audi Q8 e-tron or the BYD Sealion 7?
The two are within 12 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 475 mm of total clearance for the BYD Sealion 7 and about 463 mm of total clearance for the Audi Q8 e-tron. The BYD Sealion 7 also turns in a 0.5 m tighter circle, which helps with U-turns and multi-storey ramps.
Which battery will hold up better as a used buy, the Audi Q8 e-tron or the BYD Sealion 7?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Audi Q8 e-tron and 90% for the BYD Sealion 7. That gives the BYD Sealion 7 a modest edge in retained real-world range. The BYD Sealion 7's LFP-type pack tolerates daily 100% charging, while the Audi Q8 e-tron's NMC-type pack lasts longest kept to about 80% for everyday use. 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.
More Audi Q8 e-tron comparisons
More BYD Sealion 7 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 Audi Q8 e-tron and BYD Sealion 7 rank among the best family EVsWhere the Audi Q8 e-tron and BYD Sealion 7 rank among the best electric SUVsWhere the Audi Q8 e-tron and BYD Sealion 7 rank among the best motorway EVsWhere the Audi Q8 e-tron and BYD Sealion 7 rank among the best city EVsWhere the Audi Q8 e-tron and BYD Sealion 7 rank among the cheapest EVs to runWhere the Audi Q8 e-tron and BYD Sealion 7 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.
GuideBuying a Used Audi Q8 e-tron (2023-2025): 50 vs 55, Recalls & What to Pay
A used Audi Q8 e-tron and Q8 Sportback e-tron buyer’s guide: 50 vs 55 quattro, how to tell it from the older e-tron, the brake-servo recall, battery warranty left, real-world range, what to pay and a printable checklist.
GuideBuying a Used BYD Sealion 7 (2025 on): Comfort, Design or Excellence & What to Pay
A used BYD Sealion 7 buyer’s guide: Comfort RWD, Design AWD and Excellence AWD, the steep depreciation, BYD’s 8-year battery warranty, charging speeds, real-world range, what owners report and a printable checklist.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .