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Audi S6 (estate) • 11 cars with Valuation

Market overview: Audi S6 estate models (August-2026): There are currently 11 used Audi S6 estate cars for sale. Prices range from £18,995 to £44,989, with a median price of £39,650. AutoUncle has price-rated every car — of these, 2 are currently offered below market price. The typical selling time for a Audi S6 estate is approximately 44 days (Source: AutoUncle market data, August-2026).

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Used Audi S6 Comfort 344 HP (253 kW) 2021 Myth black metallic/myth black metallic Estate

(2021) Audi S6 Comfort 344 HP

Fair price

Estimated price £38,094

CM1 3BH Essex, Essex

193 g CO2/km comb. - 344 HP (253 kW) - 7.3 Mpg

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Used Audi S6 344 HP (253 kW) 2023 Estate

(2023) Audi S6 344 HP

Fair price

CM1 3BH Essex, Essex

193 g CO2/km comb. - 344 HP (253 kW) - 7.3 Mpg

Carwow-used-non-VIP

Used Mercedes C43 AMG Premium 408 HP (300 kW) 2023 Grey Estate

(2023) Mercedes C43 AMG Premium 408 HP

Super price

You save £3,220

LS27 0TS Morley, West Yorkshire

204 g CO2/km comb. - 408 HP (300 kW) - 9.0 Mpg

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Used BMW M340 Comfort Edition 340 HP (250 kW) 2022 Red Estate

(2022) BMW M340 Comfort Edition 340 HP

Good price

You save £2,500

CM1 3BH Essex, Essex

163 g CO2/km comb. - 340 HP (250 kW) - 44.8 Mpg

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

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-10%

1 / 4

Used (2023) Audi S6 Advanced 344 HP | Super price

TDI 344 PS tiptronic Estate

2023
26,699 miles
Trim level: Advanced
3.0L Diesel
Estate
Automatic
344 HP (253 kW)
Details

Super price

£43,980

£48,980

Motors.co.uk

ST16 1GZ Staffordshire, Staffordshire

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1 / 4

Used (2021) Audi S6 Comfort 344 HP | Super price

Avant 3.0 TDI V6 Estate 5dr Diesel

2021
49,482 miles
Trim level: Comfort
3.0L Diesel
Estate
Automatic
344 HP (253 kW)
Details

Super price

£34,990

Motors.co.uk

SS0 0JR Southend-On-Sea, Essex

-2%

1 / 4

Used (2023) Audi S6 344 HP | Fair price

- Avant TDI 344 Quattro Vorsprung

2023
67,348 miles
3.0L Diesel
Estate
Automatic
344 HP (253 kW)
CO2 emissions: 193 g CO2/km comb.
7.3 mpg
Details

Fair price

£39,650

£40,600

CM1 3BH Essex, Essex

Availability verified

-2%

1 / 4

Used (2021) Audi S6 Comfort 344 HP | Fair price

Avant 3.0 TDI V6 Vorsprung Estate

2021
67,348 miles
Trim level: Comfort
3.0L Diesel
Estate
Automatic
344 HP (253 kW)
CO2 emissions: 193 g CO2/km comb.
7.3 mpg
Details

Fair price

£39,650

£40,600

CM1 3BH Essex, Essex

Availability verified

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Used BMW M340 M Sport 374 HP (275 kW) 2020 Grey Estate

(2020) BMW M340 M Sport 374 HP

Super price

You save £3,110

BD21 4DL West Yorkshire, West Yorkshire

191 g CO2/km comb. - 374 HP (275 kW) - 8.4 Mpg

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Used BMW M340 Comfort Edition 340 HP (250 kW) 2021 Blue Estate

(2021) BMW M340 Comfort Edition 340 HP

Good price

You save £1,580

BB1 3NU Lancashire, Lancashire

165 g CO2/km comb. - 340 HP (250 kW) - 6.3 Mpg

Carwow-used-non-VIP

Used Audi RS6 Design 560 HP (411 kW) 2017 Blue Estate

(2017) Audi RS6 Design 560 HP

Super price

You save £3,600

WR9 7DZ Worcestershire, Worcestershire

223 g CO2/km comb. - 560 HP (411 kW) - 9.6 Mpg

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Used Audi RS6 Design 560 HP (411 kW) 2018 Estate

(2018) Audi RS6 Design 560 HP

Super price

You save £4,550

223 g CO2/km comb. - 560 HP (411 kW) - 9.6 Mpg

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Used (2020) Audi S6 Advanced | Fair price

Avant 3.0 TDI V6 Vorsprung

2020
66,000 miles
Trim level: Advanced
3.0L Diesel
Estate
Automatic
Details

Fair price

£41,495

£44,445

Motors.co.uk

LS27 7HJ Gildersome, West Yorkshire

-5%

1 / 4

Used (2019) Audi S6 Business 349 HP | Expensive

Avant 3.0 TDI V6 Tiptronic quattro

2019
56,066 miles
Trim level: Business
3.0L Diesel
Estate
Automatic
349 HP (256 kW)
Details

Expensive

£27,475

£28,945

Motors.co.uk

PE7 3GP Yaxley, Cambridgeshire

-1%

1 / 4

Used (2024) Audi S6 Black Edition 339 HP | Expensive

Avant 3.0 TDI V6 Black Edition

Feb 2024
41,711 miles
Trim level: Black Edition
3.0L Diesel
Estate
Automatic
339 HP (249 kW)
CO2 emissions: 188 g CO2/km comb.
7.1 mpg
Details

Expensive

£45,997

£46,795

Dealer

Audi, Dumfriesshire

-20%

1 / 4

Used (2022) Audi S6 S-Line 339 HP | Rare vehicle

S6 TDI 344 Quattro 5dr Tip

2022
21,399 miles
Trim level: S-Line
3.0L Diesel
Estate
Automatic
339 HP (249 kW)
6.9 mpg
Details

£39,999

£49,999

Rare vehicle

Buyacar

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Used (2014) Audi S6 Advanced 450 HP | Rare vehicle

TFSI V8 Estate

2014
83,735 miles
Trim level: Advanced
4.0L Petrol
Estate
Automatic
450 HP (330 kW)
9.4 mpg
Details

£16,991

£18,991

Rare vehicle

Motors.co.uk

EH11 4EX Edinburgh, Edinburgh

-2%

1 / 4

Used (2017) Audi S6 Black Edition 450 HP | Rare vehicle

Avant 4.0 TFSI V8 Black Edition

2017
118,511 miles
Trim level: Black Edition
4.0L Petrol
Estate
Automatic
450 HP (330 kW)
9.4 mpg
Details

£20,999

£21,499

Rare vehicle

Motors.co.uk

NE15 6XA Newcastle Upon Tyne, Tyne And Wear

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Used Audi RS6 Advanced 560 HP (411 kW) 2014 Silver Estate

(2014) Audi RS6 Advanced 560 HP

Fair price

Estimated price £29,855

ME17 1ET Ulcombe, Kent

229 g CO2/km comb. - 560 HP (411 kW) - 28.0 Mpg

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Used Audi RS6 Comfort 560 HP (411 kW) 2014 Black Estate

(2014) Audi RS6 Comfort 560 HP

Super price

You save £3,712

KA8 8DP Ayrshire, Ayrshire And Arran

229 g CO2/km comb. - 560 HP (411 kW) - 9.8 Mpg

Carwow

Used Audi RS6 600 HP (441 kW) 2022 Estate

(2022) Audi RS6 600 HP

Fair price

295 g CO2/km comb. - 600 HP (441 kW) - 12.9 Mpg

Carwow Leasing

New BYD Seal Boost 184 HP (135 kW) 2026 Estate

(2026) BYD Seal Boost 184 HP

Fair price

RM20 3WE West Thurrock, Essex

52 g CO2/km comb. - 184 HP (135 kW) - 2.6 Mpg

1 / 3

Used (2020) Audi S6 Design 349 HP

TDI 349PS Quattro Tiptronic auto

2020
99,000 miles
Trim level: Design
3.0L Diesel
Estate
Automatic
349 HP (256 kW)
34.9 mpg
Details

£24,480

Not evaluated

Parkers.co.uk

PR7 3AH Lancashire, Lancashire

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New BMW M340 M Sport 374 HP (275 kW) 2025 Estate

(2025) BMW M340 M Sport 374 HP

Super price

You save £7,500

B78 3HG Staffordshire, Staffordshire

182 g CO2/km comb. - 374 HP (275 kW) - 8.0 Mpg

Carwow Leasing

New BMW M340 M Sport 374 HP (275 kW) 2025 Estate

(2025) BMW M340 M Sport 374 HP

Super price

You save £4,200

182 g CO2/km comb. - 374 HP (275 kW) - 8.0 Mpg

Carwow Leasing

New BMW M340 M Sport 374 HP (275 kW) 2025 Estate

(2025) BMW M340 M Sport 374 HP

Super price

You save £4,915

182 g CO2/km comb. - 374 HP (275 kW) - 8.0 Mpg

Carwow-used-VIP

Used Mercedes C43 AMG AMG 390 HP (286 kW) 2019 Grey Estate

(2019) Mercedes C43 AMG AMG 390 HP

Super price

You save £3,700

CM1 3BH Essex, Essex

214 g CO2/km comb. - 390 HP (286 kW) - 9.8 Mpg

Showing 1 - 11 of 11 results

How much does a used Audi S6 cost? Prices, ratings and depreciation by model year

How much does a used Audi S6 cost? Prices, ratings and depreciation by model year
Model year	Price range*	Avg. Price	Median Mileage	Depreciation (12 mth.)	Cars for sale
2024 Audi S6	£47,190 - £54,841	£52,233	12,500 miles	-	< 10
2023 Audi S6	£14,448 - £43,382	£33,405	45,200 miles	-	< 10
2017 Audi S6	£19,020 - £21,855	£20,583	74,900 miles	-	< 10

*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market

The data is based on the cars currently listed on AutoUncle

Last updated: 2 August 2026

Comparison of Audi S6 variants and prices

Below you can compare prices and depreciation for the 5 most popular Audi S6 variants. The table is updated daily with data from the market in United Kingdom.

Comparison of Audi S6 variants and prices
Variant	Price range*	Avg. Price	Median Mileage	Depreciation (12 mth.)	Cars for sale
Audi S6 Black Edition	£25,999 - £54,791	£45,986	12,500 miles	-	< 10
Audi S6 Sport	£18,545 - £64,872	£35,818	67,000 miles	-	< 10
Audi S6 Advanced	£19,441 - £43,732	£34,155	66,000 miles	-	< 10
🏆 The most popular Audi S6 Comfort	£12,498 - £39,906	£28,269	54,300 miles	-	< 10
💰 The budget choice Audi S6 Design	£17,995 - £24,101	£20,605	84,500 miles	-	< 10

*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market

The data is based on the cars currently listed on AutoUncle

Last updated: 2 August 2026

Which variant should you choose?

💰 The budget choice

The Design is the cheapest entry point with an average price of £20,605.

Accuracy will improve as more cars from this variant become available

🏆 The most popular

There are the most Comfort for sale right now (6), which gives you the most options to choose from.

Accuracy will improve as more cars from this variant become available

Price checked by AutoUncle

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Audi S6 (27)