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Audi Q8 e-tron vs Mercedes-Benz EQS SUV
Selected trim50 quattro · 2023-25Change trim281 mi · 95 kWh · £67,800
Selected trim450 4MATICChange trim366 mi · 120 kWh · £129,170
At a glance
In this comparison, Audi Q8 e-tron leads on family practicality, while the Mercedes-Benz EQS SUV leads on motorway range and charging speed.
Which should you choose?
Choose the Audi Q8 e-tron if...
- you need the most family-friendly option with good safety and space
Choose the Mercedes-Benz EQS SUV if...
- you do long motorway journeys - it has the best estimated real-world range at speed
- you need the fastest charging of these options
How we reached the recommendation
Verdict
Our take
The Mercedes-Benz EQS SUV leads in the most categories, but each car here has its strengths.
Value
Audi
4.8
Mercedes-Benz
4.6
Too close to call
Motorway RangeMercedes-Benz
Audi
3
Mercedes-Benz
5.1
FamilyAudi
Audi
7.8
Mercedes-Benz
5.4
ChargingMercedes-Benz
Audi
4
Mercedes-Benz
5.7
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Mercedes-Benz EQS SUV
450 4MATIC
- 85 miles more WLTP range
- 50 kW faster rapid charging
- 2 more seats
- 2 more years of battery warranty
Key specifications
Compare the key specifications for your selected trims.
| Measure | Audi Q8 e-tron50 quattro | Mercedes-Benz EQS SUV450 4MATIC |
|---|---|---|
| Price | £67,800 (better) | £129,170 |
| Official range | 281 miles | 366 miles (better) |
| Boot space | 569 L (better) | 565 L |
| 10-80% rapid charge | 31 min (better) | 32 min |
| 0-62 mph | 5.6 sec (better) | 6.1 sec |
Size Comparison
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Audi Q8 e-tron
Mercedes-Benz EQS SUV
Length
Audi Q8 e-tron4,915mm-210mm
Mercedes-Benz EQS SUV5,125mm
Width
Audi Q8 e-tron1,937mm-22mm
Mercedes-Benz EQS SUV1,959mm
Height
Audi Q8 e-tron1,633mm-85mm
Mercedes-Benz EQS SUV1,718mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Audi Q8 e-tron50 quattro | Mercedes-Benz EQS SUV450 4MATIC |
|---|---|---|
| Length | 4,915 mm | 5,125 mm |
| Width (mirrors folded) | 1,937 mm (better) | 1,959 mm |
| Width with mirrors out | 2,189 mm | 2,157 mm (better) |
| Height | 1,633 mm | 1,718 mm |
| Turning circle | 12.2 m | 11.9 m (better) |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 463 mm spare (better) | 441 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Audi Q8 e-tron50 quattro | Mercedes-Benz EQS SUV450 4MATIC |
|---|---|---|
| Seats | 5 | 7 (better) |
| ISOFIX child-seat points | 2 | Not available |
| Boot space (seats up) | 569 L (better) | 565 L |
| Boot space (seats down) | 1637 L | 2020 L (better) |
| Towing capacity (braked) | 1,800 kg | Not available |
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.
Mercedes-Benz EQS SUV
- At 5,125 mm, longer than 100% of SUVs we track.
- 366 mile WLTP range, longer than 85% of SUVs we track.
- Boot space of 565 L is bigger than 80% of SUVs we track.
Full specifications
| Specification |  Audi Q8 e-tron 50 quattro |  Mercedes-Benz EQS SUV 450 4MATIC |
|---|---|---|
| Dimensions | ||
| Length | 4.92m | 5.13m+210mm |
| Width | 1.94m | 1.96m+22mm |
| Width (mirrors) | 2.19m | 2.16m-32mm |
| Height | 1.63m | 1.72m+85mm |
| Wheelbase | 2.93m | 3.03m+102mm |
| Ground Clearance | 172mm | Not available |
| Capacity | ||
| Boot (seats up) | 569L (better) | 565L |
| Boot (seats down) | 1637L | 2020L (better) |
| Seats | 5 | 7 (better) |
| Practicality | ||
| Turning Circle | 12.2m | 11.9m (better) |
| Kerb Weight | 2,595kg (better) | 2,805kg |
| Towing Capacity | 1,800kg | Not available |
| Electric | ||
| Battery | 95kWh | 120kWh (better) |
| Range (WLTP) | 281 mi | 366 mi (better) |
| Max DC Charge | 150kW | 200kW (better) |
| Pricing | ||
| UK MSRP | £67,800 (better) | £129,170 |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2023–2025 | 2023+ |
* Mercedes-Benz EQS SUV: 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 | Audi Q8 e-tron50 quattro | Mercedes-Benz EQS SUV450 4MATIC |
|---|---|---|
| Official range (WLTP) | 281 miles | 366 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 234 miles | 305 miles (better) |
| 10-80% rapid charge time | 31 min (better) | 32 min |
| Max rapid charge rate | 150 kW | 200 kW (better) |
| Home AC charging | 11 kW | 22 kW (better) |
| Usable battery capacity | 89 kWh | 108.4 kWh (better) |
| Battery chemistry | NMC | NMC |
| Battery architecture | 400V | 400V |
| Heat pump | Standard | Not available |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Audi Q8 e-tron50 quattro | Mercedes-Benz EQS SUV450 4MATIC |
|---|---|---|
| 0-62 mph | 5.6 sec (better) | 6.1 sec |
| Power | 250 kW | 265 kW (better) |
| Torque | 664 Nm | 800 Nm (better) |
| 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.
Mercedes-Benz EQS SUV
450 4MATIC
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
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 - Mercedes-Benz EQS SUV 450 4MATIC
Mercedes-Benz EQS SUV 450 4MATIC
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.
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | Audi Q8 e-tron50 quattro | Mercedes-Benz EQS SUV450 4MATIC |
|---|---|---|
| Battery warranty | 8 years | 10 years (better) |
| Battery warranty distance | 160,000 km | 250,000 km (better) |
Buying options
Get a quote
Audi Q8 e-tron
Used on AutoTraderLease deals
Mercedes-Benz EQS SUV
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
Audi Q8 e-tron
- £43,2992023Car360View
- £39,7912024Car360View
- £39,6082024Car360View
Mercedes-Benz EQS SUV
No active listings.
Frequently asked questions
Is the Mercedes-Benz EQS SUV worth the extra £61,370 over the Audi Q8 e-tron?
The Mercedes-Benz EQS SUV costs £61,370 more than the Audi Q8 e-tron. For that premium it adds 85 miles more WLTP range, 50 kW faster peak rapid charging and 2 more seats (7 versus 5). On EVcarsguide's combined category scores, the Mercedes-Benz EQS SUV comes out ahead overall.
Which is cheaper to own over 5 years, the Audi Q8 e-tron or the Mercedes-Benz EQS SUV?
The Audi Q8 e-tron is £61,370 cheaper to buy. Running costs are almost identical - about £224 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Audi Q8 e-tron comes out roughly £61,330 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 Mercedes-Benz EQS SUV like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 234 miles for the Audi Q8 e-tron and 305 miles for the Mercedes-Benz EQS SUV - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Mercedes-Benz EQS SUV goes roughly 71 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 31-32 minutes.
Which is easier to park and drive in town, the Audi Q8 e-tron or the Mercedes-Benz EQS SUV?
The two are within 22 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 463 mm of total clearance for the Audi Q8 e-tron and about 441 mm of total clearance for the Mercedes-Benz EQS SUV.
Which battery will hold up better as a used buy, the Audi Q8 e-tron or the Mercedes-Benz EQS SUV?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Audi Q8 e-tron and 84% for the Mercedes-Benz EQS SUV. 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. The Mercedes-Benz EQS SUV has the longer battery warranty at 10 years, versus 8 for the Audi Q8 e-tron.
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 Q8 e-tron and Mercedes-Benz EQS SUV rank among the best family EVsWhere the Audi Q8 e-tron and Mercedes-Benz EQS SUV rank among the best electric SUVsWhere the Audi Q8 e-tron and Mercedes-Benz EQS SUV rank among the best motorway EVsWhere the Audi Q8 e-tron and Mercedes-Benz EQS SUV rank among the best city EVsWhere the Audi Q8 e-tron and Mercedes-Benz EQS SUV rank among the cheapest EVs to runWhere the Audi Q8 e-tron and Mercedes-Benz EQS SUV rank among EVs with the biggest boots
If neither is quite right
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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 Mercedes EQS or EQS SUV (2021 on): Versions, Recalls, Real Range & What to Pay
A used Mercedes EQS buyer’s guide: the 450+ and AMG EQS 53 saloons and the EQS SUV, the 2024 battery update, software recalls, the 10-year battery warranty, real-world range, what to pay and a printable checklist.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .