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Audi e-tron GT vs Audi S6 Avant e-tron
Selected trimquattro385 mi · 105 kWh · £89,555
Selected trimStandard394 mi · 100 kWh · £94,925
At a glance
In this comparison, Audi e-tron GT leads on charging speed, while the Audi S6 Avant e-tron leads on family practicality and running costs.
Which should you choose?
Choose the Audi e-tron GT if...
- you need the fastest charging of these options
Choose the Audi S6 Avant e-tron if...
- you need the most family-friendly option with good safety and space
- you want the lowest running costs - from just 2.2p per mile on off-peak electricity
How we reached the recommendation
Verdict
Our take
The Audi S6 Avant e-tron edges ahead overall, but it's close - check which categories matter most to you.
Value
e-tron GT
5.6
S6 Avant e-tron
5.9
Too close to call
Motorway Range
e-tron GT
7.7
S6 Avant e-tron
7.9
Too close to call
FamilyS6 Avant e-tron
e-tron GT
4.1
S6 Avant e-tron
7.8
Charginge-tron GT
e-tron GT
7.2
S6 Avant e-tron
4.7
Cost Per MileS6 Avant e-tron
e-tron GT
2.9
S6 Avant e-tron
4.5
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 e-tron GTquattro | Audi S6 Avant e-tronBase |
|---|---|---|
| Price | £89,555 (better) | £94,925 |
| Official range | 385 miles | 394 miles (better) |
| Boot space | 405 L | 502 L (better) |
| 10-80% rapid charge | 18 min (better) | 21 min |
| 0-62 mph | 4 sec | 3.9 sec (better) |
Size Comparison
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Audi e-tron GT
Audi S6 Avant e-tron
Length
Audi e-tron GT4,989mm
Audi S6 Avant e-tron4,928mm-61mm
Width
Audi e-tron GT1,964mm
Audi S6 Avant e-tron1,923mm-41mm
Height
Audi e-tron GT1,396mm-108mm
Audi S6 Avant e-tron1,504mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Audi e-tron GTquattro | Audi S6 Avant e-tronBase |
|---|---|---|
| Length | 4,989 mm | 4,928 mm |
| Width (mirrors folded) | 1,964 mm | 1,923 mm (better) |
| Width with mirrors out | 2,158 mm | Not available |
| Height | 1,396 mm | 1,504 mm |
| Turning circle | 11.6 m (better) | 12.3 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 436 mm spare | 477 mm spare (better) |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Audi e-tron GTquattro | Audi S6 Avant e-tronBase |
|---|---|---|
| Seats | 4 | 5 (better) |
| Boot space (seats up) | 405 L | 502 L (better) |
| Boot space (seats down) | Not available | 1422 L |
| Frunk | 85 L (better) | 27 L |
Full specifications
| Specification |  Audi e-tron GT quattro |  Audi S6 Avant e-tron Base |
|---|---|---|
| Dimensions | ||
| Length | 4.99m | 4.93m-61mm |
| Width | 1.96m | 1.92m-41mm |
| Width (mirrors) | 2.16m | Not available |
| Height | 1.40m | 1.50m+108mm |
| Wheelbase | 2.90m | 2.95m+51mm |
| Capacity | ||
| Boot (seats up) | 405L | 502L (better) |
| Boot (seats down) | Not available | 1422L |
| Frunk | 85L (better) | 27L |
| Seats | 4 | 5 (better) |
| Practicality | ||
| Turning Circle | 11.6m (better) | 12.3m |
| Kerb Weight | 2,340kg (better) | 2,410kg |
| Electric | ||
| Battery | 105kWh (better) | 100kWh |
| Range (WLTP) | 385 mi | 394 mi (better) |
| Max DC Charge | 320kW (better) | 270kW |
| Pricing | ||
| UK MSRP | £89,555 (better) | £94,925 |
| Details | ||
| Body Style | Coupe | Estate |
| Available | 2025+ | 2025+ |
* Audi e-tron GT: 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 e-tron GTquattro | Audi S6 Avant e-tronBase |
|---|---|---|
| Official range (WLTP) | 385 miles | 394 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 321 miles | 328 miles (better) |
| 10-80% rapid charge time | 18 min (better) | 21 min |
| Max rapid charge rate | 320 kW (better) | 270 kW |
| Home AC charging | 11 kW | 11 kW |
| Usable battery capacity | 105 kWh (better) | 100 kWh |
| Battery chemistry | NMC | NMC |
| Battery architecture | 800V | 800V |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Audi e-tron GTquattro | Audi S6 Avant e-tronBase |
|---|---|---|
| 0-62 mph | 4 sec | 3.9 sec (better) |
| Power | 429 kW (better) | 405 kW |
| Torque | 590 Nm (better) | 580 Nm |
| Drivetrain | AWD | AWD |
What the critics say
See how UK motoring publications rate each car in their road tests.
Audi e-tron GT
quattro
Audi S6 Avant e-tron
Base
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
Audi e-tron GT
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 - Audi e-tron GT quattro
Audi e-tron GT quattro
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.
Euro NCAP - Audi S6 Avant e-tron Base
Tested 2025
Adult Occupant92%
Child Occupant91%
Safety Assist80%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | Audi e-tron GTquattro | Audi S6 Avant e-tronBase |
|---|---|---|
| Battery warranty | 8 years | Not available |
| Battery warranty distance | 160,934 km | Not available |
Buying options
Get a quote
Audi e-tron GT
Used on AutoTraderLease deals
Audi S6 Avant e-tron
Used on AutoTraderLease deals
Frequently asked questions
Is the Audi S6 Avant e-tron worth the extra £5,370 over the Audi e-tron GT?
The Audi S6 Avant e-tron costs £5,370 more than the Audi e-tron GT. For that premium it adds 97 litres more boot space and 1 more seat (5 versus 4). The Audi e-tron GT is not just cheaper - it also offers 50 kW faster peak rapid charging. On EVcarsguide's combined category scores, the Audi S6 Avant e-tron comes out ahead overall.
Which is cheaper to own over 5 years, the Audi e-tron GT or the Audi S6 Avant e-tron?
The Audi e-tron GT is £5,370 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 Audi e-tron GT comes out roughly £5,330 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 e-tron GT and Audi S6 Avant e-tron like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 321 miles for the Audi e-tron GT and 328 miles for the Audi S6 Avant e-tron - effectively matched, and both well below their WLTP figures because sustained high speed is the hardest case for an EV. Both rapid-charge to 80% in a similar time, around 18-21 minutes.
Which is easier to park and drive in town, the Audi e-tron GT or the Audi S6 Avant e-tron?
The Audi S6 Avant e-tron is the easier car for tight UK car parks: it is 41 mm narrower than the Audi e-tron GT. In a standard 2,400 mm bay that leaves about 477 mm of total clearance for the Audi S6 Avant e-tron and about 436 mm of total clearance for the Audi e-tron GT. The Audi e-tron GT also turns in a 0.7 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 GT or the Audi S6 Avant e-tron?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Audi e-tron GT and 84% for the Audi S6 Avant e-tron. 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
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More Audi e-tron GT 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 e-tron GT and Audi S6 Avant e-tron rank among long-range EVsWhere the Audi e-tron GT and Audi S6 Avant e-tron rank among the best motorway EVsWhere the Audi e-tron GT and Audi S6 Avant e-tron rank among the best city EVsWhere the Audi e-tron GT and Audi S6 Avant e-tron rank among the cheapest EVs to runWhere the Audi e-tron GT and Audi S6 Avant e-tron rank among EVs with the biggest bootsWhere the Audi e-tron GT and Audi S6 Avant e-tron rank among Best Used Electric Cars Under £10,000 (UK)
If neither is quite right
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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 .