2021 Audi RS6 Avant 4.0 Vorsprung

Price: £78,300. Fair price: £2,429 (3%) under the AskCar estimate of £80,729, our expected asking price for this car from its model, age, mileage and specification, drawing on 274 priced Audi RS6 Avant adverts on AskCar as of 4 November 2026.

AskCar lists 281 used Audi RS6 Avant from 207 UK dealerships, as of 4 November 2026.

Overview

  • Make: Audi
  • Model: RS6 Avant
  • Trim: Vorsprung
  • Version: 4.0 RS 6 Vorsprung Tiptronic 4WD Euro 6 5dr (591 bhp)
  • Year: 2021
  • Mileage: 30,000 miles
  • Fuel: Petrol
  • Body: Estate, 5 doors, 5 seats
  • Engine: 4.0 litres, 591 bhp
  • Gearbox: Automatic (Tiptronic)
  • Drive: Four-wheel drive
  • Colour: Black
  • CO2: 294 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi RS6 Avant Vorsprung has covered 30,000 miles. The AskCar estimate for this car is £80,729. It is priced at £78,300, which is £2,429 below that estimate. The AskCar estimate uses 274 UK dealer adverts for the Audi RS6 Avant, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 1 day ago. Ask the dealer why the advert shows fewer miles than the 40,929 recorded at the latest MOT. Its MOT is recorded as valid until 19 December 2026. The seller is Marshall Motor Group Audi South East London (Beckenham), based in Beckenham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,429 (3%) under the AskCar estimate of £80,729.

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 274 priced Audi RS6 Avant adverts across different ages and specifications, as of 4 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 4 November 2026.

Time on sale

AskCar first saw this 2021 Audi RS6 Avant advertised 1 day ago.

Price history

AskCar first saw this advert on 3 November 2026 at £78,300. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 19 December 2026.

It has had 3 MOTs. The latest, on 3 December 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 40,929 miles. The advert says 30,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 8,100 miles lower than the median mileage of a 2021 Audi RS6 Avant on AskCar.

Similar cars

21 other 2021 Audi RS6 Avant Vorsprung 4.0 petrol automatic estates are for sale at UK dealers, from £64,995 to £105,991, as of 4 November 2026.

The 3 closest to this car in mileage:

  • 2021 Audi RS6 Avant Vorsprung, 4.0 petrol estate, grey. Mileage: 31,000 miles. Price: £79,990, £1,690 more than this car. Dealer: Panacea Motors in Bury. AskCar page: https://askcar.co.uk/car/audi-rs6-avant-2021-bc9da41c8fd0
  • 2021 Audi RS6 Avant Vorsprung, 4.0 petrol estate, red. Mileage: 32,675 miles. Price: £74,895, £3,405 less than this car. Dealer: Cotswold Car Hub in Malmesbury. AskCar page: https://askcar.co.uk/car/audi-rs6-avant-2021-3587a5fc6380
  • 2021 Audi RS6 Avant Vorsprung, 4.0 petrol estate, red. Mileage: 33,000 miles. Price: £75,990, £2,310 less than this car. Dealer: Priory Cars in Bedford. AskCar page: https://askcar.co.uk/car/audi-rs6-avant-2021-6afcbc1969f9
  • The nearest: 2021 Audi RS6 Avant Vorsprung, 4.0 petrol estate, black, 14 miles from this car. Mileage: 42,235 miles. Price: £75,995, £2,305 less than this car. Dealer: Blue Seven in Park Royal. AskCar page: https://askcar.co.uk/car/audi-rs6-avant-2021-dad4285cafd2

Browse all Audi RS6 Avant cars for sale · 2021 Audi RS6 Avant price guide

More like this

Photos

1 photo of this car is on its AskCar page.

As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.