Audi S6 Valuation: 25 used car listings analysed

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How much does the Audi S6 depreciate?

Used Audi S6

A used Audi S6 (2025) model gains about £310 per month in value.


Factors that affect the appreciation of a Audi S6:
- Mileage
- Age of the vehicle
- Number of previous owners
- Accidents or damage history
- Trim level, equipment, and options


Appreciation is an important part of calculating the total value of owning a Audi S6. In addition to the monthly appreciation of £310, you should also factor in fuel costs, road tax, insurance and maintenance (including tyres and car washes) to get the full monthly value.

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

2025 Audi S6

£33,995 - £69,991£59,1869,500 miles+£3,720< 10

2021 Audi S6

£37,990 - £47,990£42,19349,500 miles-< 10

2014 Audi S6

£17,991 - £20,990£19,27870,800 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

Comparison of Audi S6 variants and prices

Below you can compare prices and depreciation for the 3 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

🏆 The most popular

Audi S6 Comfort

£20,990 - £69,991£50,94510,200 miles-£3,900< 10

Audi S6 Black Edition

£16,595 - £56,990£35,48726,400 miles-< 10
💰 The budget choice

Audi S6 Advanced

£17,991 - £43,245£26,69770,800 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

Which variant should you choose?

💰 The budget choice

The Advanced is the cheapest entry point with an average price of £26,697.

Accuracy will improve as more cars from this variant become available

🏆 The most popular

There are the most Black Edition for sale right now (5), which gives you the most options to choose from.

Accuracy will improve as more cars from this variant become available

📈 The best value

The Comfort has held its price stable with minimal loss in value over the past year (-£3,900).

Accuracy will improve as more cars from this variant become available

Audi S6 (model year 2025) - Price development for the last 12 months and price projection for the next 6 months (June 2025 - November 2026)

Monthly price data with average prices and price ranges

Month

Average market price

Lowest market price

Highest market price

Calculation method

2025 - June
£60,020
£57,300£62,720
Estimate
2025 - July
£60,680
£57,900£63,480
Estimate
2025 - August
£61,380
£58,320£64,440
Estimate
2025 - September
£62,080
£58,760£65,420
Estimate
2025 - October
£62,780
£59,180£66,400
Estimate
2025 - November
£63,500
£59,600£67,380
Estimate
2025 - December
£64,200
£60,020£68,360
Estimate
2026 - January
£64,900
£60,460£69,340
Estimate
2026 - February
£65,600
£60,880£70,320
Estimate
2026 - March
£63,640
£57,940£69,360
Estimate
2026 - April
£64,960
£60,380£69,560
Estimate
2026 - May
£63,740
£59,160£68,320
Estimate
2026 - July
£63,560
--
Forecast
2026 - August
£63,460
--
Forecast
2026 - September
£63,380
--
Forecast
2026 - October
£63,280
--
Forecast
2026 - November
£63,200
--
Forecast

All estimates and forecasts are based on actual market data

Average Monthly Depreciation

A summary of the past 12 and an estimation of the next 6 months.

Past 12 months

£3,720

Next 6 months

-£540

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Thinking about buying a used Audi S6?

Are you thinking of buying a used executive car? The Audi S6 is a great pick. On AutoUncle, you can find 32 used Audi S6s for sale in the UK gathered from different dealership websites and online marketplaces.

What should I pay for a used Audi S6?

A used Audi S6 costs between £17,500 for the cheapest variant and £71,674 for the most expensive model.

The used car price of an Audi S6 is determined by a number of factors, the most important of which are the year of manufacture, engine capacity and performance, fuel consumption of the car, number of miles not to mention the level of equipment in the car.

For example, a newer model with low mileage or a premium version equipped with a high-performance engine generally demands a higher price than a used model with many kilometres on the odometer and in a simple equipment variant.

What versions of the Audi S6 are available based on equipment?

When looking for the best car deal for a used Audi S6, it is important only comparing the prices of cars with a similar equipment variant and engine size. If you don't, you could reach a wrong conclusion on which car to buy.

Can I get the Audi S6 with different fuel types?

Plug-in hybrid is the foremost fuel option for the Audi S6.

Audi S6 fuel types:

  • Audi S6 plug-in hybrid: 20 cars currently available with an average price of £60,745
  • Audi S6 petrol: 6 cars currently available with an average price of £20,861
  • Audi S6 diesel: Currently there is 6 cars available on AutoUncle with an average price of £44,675

Your current driving habit is a determining factor when it comes to picking a fuel type. Do you only use your car to get to and from work? Is the distance less than roughly 35 miles each way?

If you drive mostly short distances, range is not crucial - so electric, plug-in or petrol are obvious choices. For daily long journeys, electric cars make the most sense if you can charge easily. For longer daily commutes, a modern electric car is often suitable - especially if you can charge at home or at work. For very long daily driving without charging options, a diesel car can still be relevant. It’s worth noting that diesel engines with high emissions are banned from entering cities in certain countries.

The popularity of hybrid cars is on the rise

Hybrid cars is favored in the UK due to their fuel-efficient nature, lesser carbon footprint in comparison to traditional vehicles, and the increasing availability of charging infrastructure, in line with the country's environmental directives and tax breaks for environmentally friendly transport. The integration of hybrid vehicles such as the Audi S6 is vital in the transformation towards more ecologically sustainable and friendly commuting practices.

Pros of acquiring a second-hand hybrid car

A considerable number of rewards come from investing in a used hybrid vehicle. Some of the advantages are:

  1. Cost savings on purchase: Used hybrid vehicles usually offer more attractive pricing compared to new vehicles. The reduced upfront cost make hybrid vehicles more attainable for a broader range of purchasers.

  2. Environmental benefits: Hybrids offer reduced emission levels in contrast to traditional gasoline or diesel cars. Choosing a used hybrid vehicle contributes to lower environmental harm than buying a new car, as the manufacturing process, particularly for the battery, has a carbon footprint.

  3. Fuel efficiency: Hybrids are distinguished by their fuel efficiency, combining a petrol engine with an electric motor. Such efficient performance can lead to notable savings in fuel costs over a period.

  4. Technological features: Advanced features often accompany even the earlier models of hybrid vehicles, showcasing a modern and high-tech driving experience.

  5. Government incentives: Hybrid vehicles, with their lower CO2 emissions, often benefit from reduced road tax in the UK. In areas including central London, hybrids may be entitled to reduced or no congestion charges, depending on the degree of their emissions.

Are there more body variants of Audi S6?

Stationcar is the preferred body type amongst drivers of the Audi S6. In the UK, estates, commonly referred to as station wagons, are in high demand due to their perfect blend of driving prowess and generous space. Active families often gravitate towards these, as well as SUVs and MPVs, for their versatility.

Price statistics for AutoUncle's selection of Audi S6 body types

  • Audi S6 stationcar: 21 cars - average price £55,056
  • Audi S6 sedan: 9 cars - average price £35,718
  • Audi S6 suv](https://www.autouncle.co.uk/en-gb/used-cars/Audi/S6/b-suv): 2 cars - average price £65,240

What other cars should I also know and consider?

There are various similar cars to the Audi S6.

Preferred alternatives to the Audi S6

  • Audi A6
  • BMW 520
  • Mercedes E220

The top competitor to the Audi S6 is the Audi A6. It has an average sales price of £20,495 and right now you can find 1,362 of this car for sale on AutoUncle.

The BMW 520 is another popular pick, with 1,282 cars currently for sale and an average price of £19,995. Another good choice for an alternative car is the Mercedes E220 with 917 cars for sale for the average price of £14,990.

Used Audi S6 by body type

Used Audi S6 by fuel

See Audi