2021 Audi RS6 Avant 4.0
Price: £69,850. Above the going rate: £5,670 (8%) over the AskCar estimate of £64,180, our expected asking price for this car from its model, age, mileage and specification, drawing on 271 priced Audi RS6 Avant adverts on AskCar as of 9 November 2026.
AskCar lists 279 used Audi RS6 Avant from 203 UK dealerships, as of 9 November 2026.
Overview
- Make: Audi
- Model: RS6 Avant
- Version: 4.0 Tiptronic 4WD Euro 6 5dr
- Year: 2021
- Mileage: 37,600 miles
- Fuel: Petrol
- Body: Estate, 5 doors
- Engine: 4.0 litres
- Gearbox: Automatic (Tiptronic)
- Drive: Four-wheel drive
- Colour: Grey
- CO2: 295 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 Audi RS6 Avant has covered 37,600 miles. The dealer is asking £69,850, which is £5,670 above the AskCar estimate of £64,180. To work out the AskCar estimate, we analyse UK dealer adverts for 271 Audi RS6 Avant cars across different ages and specifications. The asking price is now £3,000 lower than when we first recorded the advert 165 days ago. Its advertised mileage matches the government's MOT record. It is for sale at Proctor Car Sales in Wessington. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 9 November 2026.
Proctor Car Sales is rated 4.8 out of 5 on Google.
Price
Above the going rate: £5,670 (8%) over the AskCar estimate of £64,180.
The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.
It draws on 271 priced Audi RS6 Avant adverts across different ages and specifications, as of 9 November 2026.
A 2021 Audi RS6 Avant with the 4.0 petrol engine is typically advertised at £72,000: the median of the 41 for sale on AskCar, as of 9 November 2026.
Time on sale
This 2021 Audi RS6 Avant has been on sale for at least 165 days.
Price history
AskCar first saw this advert on 28 May 2026 at £72,850. Its asking price is now £69,850, £3,000 less. The latest price cut was seen on 13 October 2026.
Price changes recorded:
- 28 May 2026: £72,850
- 30 June 2026: £71,850
- 10 July 2026: £72,450
- 15 August 2026: £71,450
- 13 October 2026: £69,850
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: valid until 2 February 2027.
It has had 3 MOTs. The latest, on 3 February 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 37,445 miles, which matches the advertised 37,600 miles.
Advertised mileage is about 200 miles lower than the median mileage of a 2021 Audi RS6 Avant on AskCar.
Browse all Audi RS6 Avant cars for sale · 2021 Audi RS6 Avant price guide
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Photos
32 photos of this car are on its AskCar page.
As of 9 November 2026, AskCar lists 584,619 cars and vans from 12,676 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.