2021 Audi Q8 3.0 S Line

Price: £35,990. Fair price: £1,405 (4%) over the AskCar estimate of £34,585, our expected asking price for this car from its model, age, mileage and specification, drawing on 435 priced Audi Q8 adverts on AskCar as of 4 November 2026.

AskCar lists 446 used Audi Q8 from 301 UK dealerships, as of 4 November 2026.

Overview

  • Make: Audi
  • Model: Q8
  • Trim: S Line
  • Version: 3.0 TDI S Line Tiptronic 4WD Euro 6 5dr (281 bhp)
  • Year: 2021
  • Mileage: 50,000 miles
  • Fuel: Diesel, mild hybrid
  • Body: SUV, 5 doors, 5 seats
  • Engine: 3.0 litres, 281 bhp
  • Gearbox: Automatic (Tiptronic)
  • Drive: Four-wheel drive
  • Colour: Blue
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi Q8 S Line is advertised with 50,000 miles on the clock. The AskCar estimate for this car is £34,585. It is priced at £35,990, which is £1,405 above that estimate. The AskCar estimate uses UK dealer asking prices, including 435 Audi Q8 adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 126 days ago, the asking price has dropped by £1,000. The seller is Derby Trade Cars, based in Derby. 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: £1,405 (4%) over the AskCar estimate of £34,585.

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 435 priced Audi Q8 adverts across different ages and specifications, as of 4 November 2026.

A 2021 Audi Q8 with the 3.0 diesel engine is typically advertised at £36,000: the median of the 45 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2021 Audi Q8 has been on sale for at least 126 days.

Price history

AskCar first saw this advert on 1 July 2026 at £36,990. Its asking price is now £35,990, £1,000 less. The latest price cut was seen on 25 October 2026.

Price changes recorded:

  • 1 July 2026: £36,990
  • 23 July 2026: £35,490
  • 13 August 2026: £34,990
  • 24 September 2026: £36,490
  • 25 October 2026: £35,990

Similar cars

11 other 2021 Audi Q8 S Line 3.0 diesel automatic SUVs are for sale at UK dealers, from £30,990 to £38,750, as of 4 November 2026.

The 3 closest to this car in mileage:

  • 2021 Audi Q8 S Line, 3.0 diesel SUV, grey. Mileage: 51,443 miles. Price: £36,139, £149 more than this car. Dealer: Vindis Group Huntingdon Audi in Huntingdon. AskCar page: https://askcar.co.uk/car/audi-q8-2021-42651b06df3b
  • 2021 Audi Q8 S Line, 3.0 diesel SUV, grey. Mileage: 48,155 miles. Price: £33,990, £2,000 less than this car. Dealer: Group 1 Automotive Finchley Road Audi in Camden. AskCar page: https://askcar.co.uk/car/audi-q8-2021-be9fd5e80d57
  • 2021 Audi Q8 S Line, 3.0 diesel SUV, grey. Mileage: 44,992 miles. Price: £35,000, £990 less than this car. Dealer: Sytner Group Wakefield Audi in Wakefield. AskCar page: https://askcar.co.uk/car/audi-q8-2021-bc7b6ad0451a

Browse all Audi Q8 cars for sale · 2021 Audi Q8 price guide

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Photos

33 photos of this car are 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.