2021 Audi RS6 Avant 4.0 TFSI V8 Carbon Black

Overview

• Make: Audi
• Model: RS6 Avant
• Trim: Carbon Black
• Version: 4.0 TFSI V8 Carbon Black Tiptronic 4WD Euro 6 (s/s) 5dr (592 bhp)
• Year: 2021
• Mileage: 45,000 miles
• Fuel: Petrol
• Body: Estate, 5 doors, 4 seats
• Engine: 4.0 litres, 592 bhp
• 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 Carbon Black has covered 45,000 miles, around 7,000 more miles than is typical for its age. The dealer is asking £69,990, which is £292 below the AskCar estimate of £70,282. To work out the AskCar estimate, we analyse UK dealer adverts for 271 Audi RS6 Avant cars across different ages and specifications. We first recorded this car for sale 68 days ago. The government's MOT record matches its advertised mileage. It is advertised by Nation Car Supermarket in Halifax. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £292 (under 1%) under the AskCar estimate of £70,282.

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 7 November 2026.

A 2021 Audi RS6 Avant with the 4.0 petrol engine is typically advertised at £72,000: the median of the 40 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2021 Audi RS6 Avant has been on sale for at least 68 days.

Price history

AskCar first saw this advert on 31 August 2026 at £69,950. Its asking price is now £69,990, £40 more.

Price changes recorded:

• 31 August 2026: £69,950
• 9 September 2026: £67,500
• 11 September 2026: £69,500
• 5 October 2026: £65,990
• 8 October 2026: £66,990
• 25 October 2026: £69,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 22 June 2027.

It has had 4 MOTs. The latest, on 23 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 44,471 miles, which matches the advertised 45,000 miles.

Advertised mileage is about 7,000 miles higher than the median mileage of a 2021 Audi RS6 Avant on AskCar.

Similar cars

10 other 2021 Audi RS6 Avant Carbon Black 4.0 petrol automatic estates are for sale at UK dealers, from £64,995 to £77,895, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi RS6 Avant Carbon Black, 4.0 petrol estate, black. Mileage: 45,124 miles. Price: £69,495, £495 less than this car. Dealer: Yeomans Audi Truro in Truro. AskCar page: https://askcar.co.uk/car/audi-rs6-avant-2021-231aa8d3056f
• 2021 Audi RS6 Avant Carbon Black, 4.0 petrol estate, grey. Mileage: 47,637 miles. Price: £68,995, £995 less than this car. Dealer: John Clark Motor Group in Inverness. AskCar page: https://askcar.co.uk/car/audi-rs6-avant-2021-c548353eae84
• 2021 Audi RS6 Avant Carbon Black, 4.0 petrol estate, black. Mileage: 40,000 miles. Price: £70,990, £1,000 more than this car. Dealer: M A Performance Cars in Sutton Coldfield. AskCar page: https://askcar.co.uk/car/audi-rs6-avant-2021-17d7ae3e3cf1

• The nearest: 2021 Audi RS6 Avant Carbon Black, 4.0 petrol estate, grey, 27 miles from this car. Mileage: 39,965 miles. Price: £77,895, £7,905 more than this car. Dealer: Redline Specialist Cars in Knaresborough. AskCar page: https://askcar.co.uk/car/audi-rs6-avant-2021-ac1bf83eda69