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Audi S6 Sportback e-tron vs Audi SQ6 Sportback e-tron
Selected trimStandard411 mi · 100 kWh · £93,125
Selected trimStandard372 mi · 100 kWh · £90,150
At a glance
In this comparison, Audi S6 Sportback e-tron leads on value for money, motorway range and running costs, while the Audi SQ6 Sportback e-tron leads on charging speed.
Which should you choose?
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 want the lowest running costs - from just 2.1p per mile on off-peak electricity
Choose the Audi SQ6 Sportback e-tron if...
- you need the fastest charging of these options
How we reached the recommendation
Verdict
Our take
The Audi S6 Sportback e-tron leads in the most categories, but each car here has its strengths.
ValueS6 Sportback e-tron
S6 Sportback e-tron
6.1
SQ6 Sportback e-tron
5.3
Motorway RangeS6 Sportback e-tron
S6 Sportback e-tron
8.2
SQ6 Sportback e-tron
7.6
Family
S6 Sportback e-tron
7.7
SQ6 Sportback e-tron
7.5
Too close to call
ChargingSQ6 Sportback e-tron
S6 Sportback e-tron
4.7
SQ6 Sportback e-tron
8.3
Cost Per MileS6 Sportback e-tron
S6 Sportback e-tron
5.5
SQ6 Sportback e-tron
3.2
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 S6 Sportback e-tronBase | Audi SQ6 Sportback e-tronBase |
|---|---|---|
| Price | £93,125 | £90,150 (better) |
| Official range | 411 miles (better) | 372 miles |
| Boot space | 502 L | 511 L (better) |
| 10-80% rapid charge | 21 min | 21 min |
| 0-62 mph | 3.9 sec (better) | 4.3 sec |
Size Comparison
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Audi S6 Sportback e-tron
Audi SQ6 Sportback e-tron
Length
Audi S6 Sportback e-tron4,928mm
Audi SQ6 Sportback e-tron4,771mm-157mm
Width
Audi S6 Sportback e-tron1,923mm-42mm
Audi SQ6 Sportback e-tron1,965mm
Height
Audi S6 Sportback e-tron1,465mm-215mm
Audi SQ6 Sportback e-tron1,680mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Audi S6 Sportback e-tronBase | Audi SQ6 Sportback e-tronBase |
|---|---|---|
| Length | 4,928 mm | 4,771 mm |
| Width (mirrors folded) | 1,923 mm (better) | 1,965 mm |
| Height | 1,465 mm | 1,680 mm |
| Turning circle | 12.3 m | 12.1 m (better) |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 477 mm spare (better) | 435 mm spare |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Audi S6 Sportback e-tronBase | Audi SQ6 Sportback e-tronBase |
|---|---|---|
| Seats | 5 | 5 |
| Boot space (seats up) | 502 L | 511 L (better) |
| Boot space (seats down) | 1330 L | 1373 L (better) |
| Frunk | 27 L | Not available |
How each stacks up
Percentile ranks against UK EVs of the same body style.
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.
Audi SQ6 Sportback e-tron
- 372 mile WLTP range, longer than 85% of SUVs we track.
- Peak DC charging of 270 kW, faster than 85% of SUVs in our catalogue.
Full specifications
| Specification |  Audi S6 Sportback e-tron Base |  Audi SQ6 Sportback e-tron Base |
|---|---|---|
| Dimensions | ||
| Length | 4.93m | 4.77m-157mm |
| Width | 1.92m | 1.97m+42mm |
| Height | 1.47m | 1.68m+215mm |
| Wheelbase | 2.95m | 2.90m-52mm |
| Capacity | ||
| Boot (seats up) | 502L | 511L (better) |
| Boot (seats down) | 1330L | 1373L (better) |
| Frunk | 27L | Not available |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 12.3m | 12.1m (better) |
| Kerb Weight | 2,400kg | 2,350kg (better) |
| Electric | ||
| Battery | 100kWh | 100kWh |
| Range (WLTP) | 411 mi (better) | 372 mi |
| Max DC Charge | 270kW | 270kW |
| Pricing | ||
| UK MSRP | £93,125 | £90,150 (better) |
| Details | ||
| Body Style | Estate | SUV |
| Available | 2025+ | 2024+ |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Audi S6 Sportback e-tronBase | Audi SQ6 Sportback e-tronBase |
|---|---|---|
| Official range (WLTP) | 411 miles (better) | 372 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 342 miles (better) | 309 miles |
| 10-80% rapid charge time | 21 min | 21 min |
| Max rapid charge rate | 270 kW | 270 kW |
| Home AC charging | 11 kW | 11 kW |
| Usable battery capacity | 100 kWh | 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 S6 Sportback e-tronBase | Audi SQ6 Sportback e-tronBase |
|---|---|---|
| 0-62 mph | 3.9 sec (better) | 4.3 sec |
| Power | 404 kW (better) | 380 kW |
| Torque | 580 Nm | 580 Nm |
| Drivetrain | AWD | AWD |
Watch the reviews
Watch selected video reviews here, or visit each model page for the full collection.
Audi S6 Sportback e-tron
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 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)
Euro NCAP - Audi SQ6 Sportback e-tron Base
Tested 2024
Adult Occupant91%
Child Occupant92%
Vulnerable Road Users81%
Safety Assist80%
Full result on euroncap.com (opens in new tab)
Buying options
Get a quote
Audi S6 Sportback e-tron
Used on AutoTraderLease deals
Audi SQ6 Sportback e-tron
Used on AutoTraderLease deals
Frequently asked questions
Is the Audi S6 Sportback e-tron worth the extra £2,975 over the Audi SQ6 Sportback e-tron?
The Audi S6 Sportback e-tron costs £2,975 more than the Audi SQ6 Sportback e-tron. For that premium it adds 39 miles more WLTP range. 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 S6 Sportback e-tron or the Audi SQ6 Sportback e-tron?
The Audi SQ6 Sportback e-tron is £2,975 cheaper to buy. Running costs are almost identical - about £168 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Audi SQ6 Sportback e-tron comes out roughly £2,895 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 S6 Sportback e-tron and Audi SQ6 Sportback e-tron like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 342 miles for the Audi S6 Sportback e-tron and 309 miles for the Audi SQ6 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 33 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 21-21 minutes.
Which is easier to park and drive in town, the Audi S6 Sportback e-tron or the Audi SQ6 Sportback e-tron?
The Audi S6 Sportback e-tron is the easier car for tight UK car parks: it is 42 mm narrower than the Audi SQ6 Sportback e-tron. In a standard 2,400 mm bay that leaves about 477 mm of total clearance for the Audi S6 Sportback e-tron and about 435 mm of total clearance for the Audi SQ6 Sportback e-tron.
Which battery will hold up better as a used buy, the Audi S6 Sportback e-tron or the Audi SQ6 Sportback e-tron?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Audi S6 Sportback e-tron and 84% for the Audi SQ6 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 S6 Sportback e-tron comparisons
More Audi SQ6 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 S6 Sportback e-tron and Audi SQ6 Sportback e-tron rank among the best family EVsWhere the Audi S6 Sportback e-tron and Audi SQ6 Sportback e-tron rank among long-range EVsWhere the Audi S6 Sportback e-tron and Audi SQ6 Sportback e-tron rank among the best motorway EVsWhere the Audi S6 Sportback e-tron and Audi SQ6 Sportback e-tron rank among the best city EVsWhere the Audi S6 Sportback e-tron and Audi SQ6 Sportback e-tron rank among the cheapest EVs to runWhere the Audi S6 Sportback e-tron and Audi SQ6 Sportback e-tron 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.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .