2021 Audi RS6 Avant 4.0 Vorsprung

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 £80,840. It is priced at £78,400, which is £2,440 below that estimate. The AskCar estimate uses 275 UK dealer adverts for the Audi RS6 Avant, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert for 3 days. 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 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,440 (3%) under the AskCar estimate of £80,840.

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 275 priced Audi RS6 Avant adverts across different ages and specifications, as of 6 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 6 November 2026.

Time on sale

AskCar first saw this 2021 Audi RS6 Avant advertised 3 days ago.

Price history

AskCar first saw this advert on 3 November 2026 at £78,300. Its asking price is now £78,400, £100 more.

Price changes recorded:

• 3 November 2026: £78,300
• 6 November 2026: £78,400

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 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 7,800 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 6 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, £1,590 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: 33,000 miles. Price: £75,990, £2,410 less than this car. Dealer: Priory Cars in Bedford. AskCar page: https://askcar.co.uk/car/audi-rs6-avant-2021-6afcbc1969f9
• 2021 Audi RS6 Avant Vorsprung, 4.0 petrol estate, grey. Mileage: 33,260 miles. Price: £76,595, £1,805 less than this car. Dealer: Group 1 Automotive Southend Audi in Thundersley and South Benfleet. AskCar page: https://askcar.co.uk/car/audi-rs6-avant-2021-0ccff5791b0f

• The nearest: 2021 Audi RS6 Avant Vorsprung, 4.0 petrol estate, black, 14 miles from this car. Mileage: 42,235 miles. Price: £75,995, £2,405 less than this car. Dealer: Blue Seven in Park Royal. AskCar page: https://askcar.co.uk/car/audi-rs6-avant-2021-dad4285cafd2