In this comparison, Audi S6 Avant e-tron leads on value for money, motorway range and family practicality, while the Hyundai IONIQ 6 N leads on charging speed.
Choose the Audi S6 Avant e-tron if...
Choose the Hyundai IONIQ 6 N if...
Our take
The Audi S6 Avant e-tron wins almost every category - it's the clear choice unless price is the deciding factor.
See the specification differences behind the verdict, with supporting figures for each advantage.
Base
Compare the key specifications for your selected trims.
| Measure | Audi S6 Avant e-tronBase | Hyundai IONIQ 6 NBase |
|---|---|---|
| Price | £94,925 | £65,800 (better) |
| Official range | 394 miles (better) | 303 miles |
| Boot space | 502 L (better) | 371 L |
| 10-80% rapid charge | 21 min | 18 min (better) |
| 0-62 mph | 3.9 sec | 3.2 sec (better) |
Size Comparison
Length
Width
Height
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Audi S6 Avant e-tronBase | Hyundai IONIQ 6 NBase |
|---|---|---|
| Length | 4,928 mm | 4,935 mm |
| Width (mirrors folded) | 1,923 mm (better) | 1,940 mm |
| Width with mirrors out | Not available | 2,144 mm |
| Height | 1,504 mm | 1,495 mm |
| Turning circle | 12.3 m | 12 m (better) |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 477 mm spare (better) | 460 mm spare |
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Audi S6 Avant e-tronBase | Hyundai IONIQ 6 NBase |
|---|---|---|
| Seats | 5 | 5 |
| Boot space (seats up) | 502 L (better) | 371 L |
| Boot space (seats down) | 1422 L | Not available |
| Frunk | 27 L | Not available |
| Specification | Audi S6 Avant e-tron Base | Hyundai IONIQ 6 N Base |
|---|---|---|
| Dimensions | ||
| Length | 4.93m | 4.93m+7mm |
| Width | 1.92m | 1.94m+17mm |
| Width (mirrors) | Not available | 2.14m |
| Height | 1.50m | 1.50m-9mm |
| Wheelbase | 2.95m | 2.96m+14mm |
| Capacity | ||
| Boot (seats up) | 502L (better) | 371L |
| Boot (seats down) | 1422L | Not available |
| Frunk | 27L | Not available |
| Seats | 5 | 5 |
| Practicality | ||
| Turning Circle | 12.3m | 12m (better) |
| Kerb Weight | 2,410kg | 2,201kg (better) |
| Electric | ||
| Battery | 100kWh (better) | 84kWh |
| Range (WLTP) | 394 mi (better) | 303 mi |
| Max DC Charge | 270kW | 350kW (better) |
| Pricing | ||
| UK MSRP | £94,925 | £65,800 (better) |
| Details | ||
| Body Style | Estate | Saloon |
| Available | 2025+ | 2026+ |
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Audi S6 Avant e-tronBase | Hyundai IONIQ 6 NBase |
|---|---|---|
| Official range (WLTP) | 394 miles (better) | 303 miles |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 328 miles (better) | 252 miles |
| 10-80% rapid charge time | 21 min | 18 min (better) |
| Max rapid charge rate | 270 kW | 350 kW (better) |
| Home AC charging | 11 kW | 11 kW |
| Usable battery capacity | 100 kWh (better) | 84 kWh |
| Battery chemistry | NMC | NCMA |
| Battery architecture | 800V | 800V |
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Audi S6 Avant e-tronBase | Hyundai IONIQ 6 NBase |
|---|---|---|
| 0-62 mph | 3.9 sec | 3.2 sec (better) |
| Power | 405 kW | 478 kW (better) |
| Torque | 580 Nm | 770 Nm (better) |
| Drivetrain | AWD | AWD |
See how UK motoring publications rate each car in their road tests.

Audi S6 Avant e-tron
Base

Hyundai IONIQ 6 N
Base
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.
For a useful running-cost comparison, factor in your mileage, charging access and current petrol or diesel car alongside the EV estimate.
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Cost per mile
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Assess the effective monthly cost alongside the list price and expected depreciation.
Tested 2025
Tested 2025
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Audi S6 Avant e-tron
Hyundai IONIQ 6 N
The Audi S6 Avant e-tron costs £29,125 more than the Hyundai IONIQ 6 N. For that premium it adds 91 miles more WLTP range and 131 litres more boot space. The Hyundai IONIQ 6 N is not just cheaper - it also offers 80 kW faster peak rapid charging and 73 kW more power. On EVcarsguide's combined category scores, the Audi S6 Avant e-tron comes out ahead overall.
The Hyundai IONIQ 6 N is £29,125 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 Hyundai IONIQ 6 N comes out roughly £29,045 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
EVcarsguide estimates a real-world motorway range of about 328 miles for the Audi S6 Avant e-tron and 252 miles for the Hyundai IONIQ 6 N - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Audi S6 Avant e-tron goes roughly 76 miles further between charging stops. Both rapid-charge to 80% in a similar time, around 18-21 minutes.
The two are within 17 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 477 mm of total clearance for the Audi S6 Avant e-tron and about 460 mm of total clearance for the Hyundai IONIQ 6 N. The Hyundai IONIQ 6 N also turns in a 0.3 m tighter circle, which helps with U-turns and multi-storey ramps.
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Audi S6 Avant e-tron and 89% for the Hyundai IONIQ 6 N. That gives the Hyundai IONIQ 6 N a modest edge in retained real-world range. Both use NMC-type cells, so for daily use keep the charge limit near 80% to slow degradation.
Visit the full model pages for owner feedback, expert reviews, used prices and battery-health information.
Compare similarly sized and priced electric cars before finalising your shortlist.
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EVcarsguide scores every verified EV on price, range, family use and running costs. Here is where this pair appears.
Explore other verified electric cars that may better suit the priorities this pair does not meet.
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .