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Audi RS e-tron GT (2021-2024) vs Audi S6 Sportback e-tron
Selected trim93kWh · 2021-24295 mi · 93.4 kWh · £110,950
Selected trimStandard411 mi · 100 kWh · £93,125
At a glance
In this comparison, Audi RS e-tron GT leads on charging speed, while the Audi S6 Sportback e-tron leads on value for money, motorway range and family practicality.
Best value
Audi S6 Sportback e-tronRange & charging
Too close to call
Practicality
Audi S6 Sportback e-tronWhich should you choose?
Choose the Audi RS e-tron GT (2021-2024) if...
- you need the fastest charging of these options
Choose the Audi S6 Sportback e-tron if...
- you want the most for your money - best overall spec per pound
- you do long motorway journeys - it has the best estimated real-world range at speed
- you need the most family-friendly option with good safety and space
- you want the lowest running costs - from just 2.1p per mile on off-peak electricity
How we reached the recommendation
Verdict
Our take
The Audi S6 Sportback e-tron wins almost every category - it's the clear choice unless price is the deciding factor.
ValueS6 Sportback e-tron
RS e-tron GT
3.7
S6 Sportback e-tron
6.1
Motorway RangeS6 Sportback e-tron
RS e-tron GT
5.1
S6 Sportback e-tron
8.2
FamilyS6 Sportback e-tron
RS e-tron GT
4.1
S6 Sportback e-tron
7.7
ChargingRS e-tron GT
RS e-tron GT
6
S6 Sportback e-tron
4.7
Cost Per MileS6 Sportback e-tron
RS e-tron GT
0.9
S6 Sportback e-tron
5.5
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Audi S6 Sportback e-tron
Base
- £17,825 cheaper
- 116 miles more WLTP range
- 97 litres more boot space
- 1 more seat
Key specifications
Compare the key specifications for your selected trims.
| Measure | Audi RS e-tron GT93kWh | Audi S6 Sportback e-tronBase |
|---|---|---|
| Price | £110,950 | £93,125 (better) |
| Official range | 295 miles | 411 miles (better) |
| Boot space | 405 L | 502 L (better) |
| 10-80% rapid charge | 18 min (better) | 21 min |
| 0-62 mph | 2.8 sec (better) | 3.9 sec |
Size Comparison
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Audi RS e-tron GT
Audi S6 Sportback e-tron
Length
Audi RS e-tron GT4,997mm
Audi S6 Sportback e-tron4,928mm-69mm
Width
Audi RS e-tron GT1,964mm
Audi S6 Sportback e-tron1,923mm-41mm
Height
Audi RS e-tron GT1,389mm-76mm
Audi S6 Sportback e-tron1,465mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Audi RS e-tron GT93kWh | Audi S6 Sportback e-tronBase |
|---|---|---|
| Length | 4,997 mm | 4,928 mm |
| Width (mirrors folded) | 1,964 mm | 1,923 mm (better) |
| Width with mirrors out | 2,158 mm | Not available |
| Height | 1,389 mm | 1,465 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 RS e-tron GT93kWh | Audi S6 Sportback e-tronBase |
|---|---|---|
| Seats | 4 | 5 (better) |
| Boot space (seats up) | 405 L | 502 L (better) |
| Boot space (seats down) | Not available | 1330 L |
| Frunk | 85 L (better) | 27 L |
How each stacks up
Percentile ranks against UK EVs of the same body style.
Audi RS e-tron GT
Not enough peers to make confident percentile claims.
Audi S6 Sportback e-tron
- 411 mile WLTP range, longer than 85% of estate EVs we track.
- 2,951 mm wheelbase, longer than 85% of estate EVs we track.
Full specifications
| Specification |  Audi RS e-tron GT 93kWh |  Audi S6 Sportback e-tron Base |
|---|---|---|
| Dimensions | ||
| Length | 5.00m | 4.93m-69mm |
| Width | 1.96m | 1.92m-41mm |
| Width (mirrors) | 2.16m | Not available |
| Height | 1.39m | 1.47m+76mm |
| Wheelbase | 2.90m | 2.95m+51mm |
| Capacity | ||
| Boot (seats up) | 405L | 502L (better) |
| Boot (seats down) | Not available | 1330L |
| Frunk | 85L (better) | 27L |
| Seats | 4 | 5 (better) |
| Practicality | ||
| Turning Circle | 11.6m (better) | 12.3m |
| Kerb Weight | 2,395kg (better) | 2,400kg |
| Electric | ||
| Battery | 93.4kWh | 100kWh (better) |
| Range (WLTP) | 295 mi | 411 mi (better) |
| Max DC Charge | 270kW | 270kW |
| Pricing | ||
| UK MSRP | £110,950 | £93,125 (better) |
| Details | ||
| Body Style | Coupe | Estate |
| Available | 2021–2024 | 2025+ |
* Audi RS 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 RS e-tron GT93kWh | Audi S6 Sportback e-tronBase |
|---|---|---|
| Official range (WLTP) | 295 miles | 411 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 246 miles | 342 miles (better) |
| 10-80% rapid charge time | 18 min (better) | 21 min |
| Max rapid charge rate | 270 kW | 270 kW |
| Home AC charging | 11 kW | 11 kW |
| Usable battery capacity | 86 kWh | 100 kWh (better) |
| 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 RS e-tron GT93kWh | Audi S6 Sportback e-tronBase |
|---|---|---|
| 0-62 mph | 2.8 sec (better) | 3.9 sec |
| Power | 475 kW (better) | 404 kW |
| Torque | 590 Nm (better) | 580 Nm |
| Drivetrain | Not available | AWD |
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 RS e-tron GT 93kWh
Audi RS e-tron GT 93kWh
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 Sportback e-tron Base
Tested 2025
Adult Occupant92%
Child Occupant91%
Vulnerable Road Users75%
Safety Assist80%
Full result on euroncap.com (opens in new tab)
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | Audi RS e-tron GT93kWh | Audi S6 Sportback e-tronBase |
|---|---|---|
| Battery warranty | 8 years | Not available |
| Battery warranty distance | 160,934 km | Not available |
Buying options
Get a quote
Audi RS e-tron GT
Used on AutoTraderLease deals
Audi S6 Sportback e-tron
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
Audi RS e-tron GT
- £49,7992023Car360View
Audi S6 Sportback e-tron
No active listings.
Frequently asked questions
Is the Audi RS e-tron GT worth the extra £17,825 over the Audi S6 Sportback e-tron?
The Audi RS e-tron GT costs £17,825 more than the Audi S6 Sportback e-tron. For that premium it adds 71 kW more power and a 1.1s quicker 0-62mph time. The Audi S6 Sportback e-tron is not just cheaper - it also offers 116 miles more WLTP range, 97 litres more boot space and 1 more seat (5 versus 4). On EVcarsguide's combined category scores, the Audi S6 Sportback e-tron comes out ahead overall.
Which is cheaper to own over 5 years, the Audi RS e-tron GT or the Audi S6 Sportback e-tron?
The Audi S6 Sportback e-tron is £17,825 cheaper to buy. The Audi S6 Sportback e-tron is cheaper to charge, roughly £168 a year versus £216 for the Audi RS e-tron GT, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Audi S6 Sportback e-tron comes out roughly £18,065 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 RS e-tron GT and Audi S6 Sportback e-tron like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 246 miles for the Audi RS e-tron GT and 342 miles for the Audi S6 Sportback e-tron - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Audi S6 Sportback e-tron goes roughly 96 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 18-21 minutes.
Which is easier to park and drive in town, the Audi RS e-tron GT or the Audi S6 Sportback e-tron?
The Audi S6 Sportback e-tron is the easier car for tight UK car parks: it is 41 mm narrower than the Audi RS e-tron GT. In a standard 2,400 mm bay that leaves about 477 mm of total clearance for the Audi S6 Sportback e-tron and about 436 mm of total clearance for the Audi RS e-tron GT. The Audi RS 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 RS e-tron GT or the Audi S6 Sportback e-tron?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Audi RS e-tron GT and 84% for the Audi S6 Sportback 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
Compare similarly sized and priced electric cars before finalising your shortlist.
More Audi RS e-tron GT comparisons
More Audi S6 Sportback e-tron 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 RS e-tron GT and Audi S6 Sportback e-tron rank among the best motorway EVsWhere the Audi RS e-tron GT and Audi S6 Sportback e-tron rank among the best city EVsWhere the Audi RS e-tron GT and Audi S6 Sportback e-tron rank among the cheapest EVs to runWhere the Audi RS e-tron GT and Audi S6 Sportback e-tron rank among EVs with the biggest bootsWhere the Audi RS e-tron GT and Audi S6 Sportback e-tron rank among Best Used Electric Cars Under £10,000 (UK)Where the Audi RS e-tron GT and Audi S6 Sportback e-tron rank among Best Used Electric Cars Under £15,000 (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 .