2020 Audi A8 3.0 TDI V6 S Line
Price: £25,500. Good value: £2,731 (9%) under the AskCar estimate of £28,231, our expected asking price for this car from its model, age, mileage and specification, drawing on 214 priced Audi A8 adverts on AskCar as of 2 November 2026.
AskCar lists 225 used Audi A8 from 191 UK dealerships, as of 2 November 2026.
Overview
- Make: Audi
- Model: A8
- Trim: S Line
- Version: 3.0 TDI V6 50 S Line Tiptronic 4WD Euro 6 (s/s) 4dr (282 bhp)
- Year: 2020
- Mileage: 39,150 miles
- Fuel: Diesel
- Body: Saloon, 4 doors, 5 seats
- Engine: 3.0 litres, 282 bhp
- Gearbox: Automatic (Tiptronic)
- Drive: Four-wheel drive
- Colour: Grey
- CO2: 158 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
With 39,150 miles on the clock, this 2020 Audi A8 S Line has done roughly 19,900 fewer miles than a typical 2020 Audi A8. Its asking price of £25,500 is £2,731 below the AskCar estimate of £28,231. The AskCar estimate uses UK dealer asking prices, including 214 Audi A8 adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 62 days ago, the asking price has dropped by £470. Its advertised mileage matches the government's MOT record. The seller is Reverie Autos, based in Hatfield. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Good value: £2,731 (9%) under the AskCar estimate of £28,231.
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 214 priced Audi A8 adverts across different ages and specifications, as of 2 November 2026.
A 2020 Audi A8 with the 3.0 diesel engine is typically advertised at £25,200: the median of the 18 for sale on AskCar, as of 2 November 2026.
Time on sale
This 2020 Audi A8 has been on sale for at least 62 days.
Price history
AskCar first saw this advert on 1 September 2026 at £25,970. Its asking price is now £25,500, £470 less. The latest price cut was seen on 20 October 2026.
Price changes recorded:
- 1 September 2026: £25,970
- 20 October 2026: £25,500
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 11 November 2026.
It has had 4 MOTs. The latest, on 12 November 2025, passed.
Advisories at the latest test: tyre worn close to legal limit/worn on edge both rears on 4 mm.
Mileage at that test: 32,870 miles, which matches the advertised 39,150 miles.
Advertised mileage is about 19,900 miles lower than the median mileage of a 2020 Audi A8 on AskCar.
Similar cars
8 other 2020 Audi A8 S Line 3.0 diesel automatic saloons are for sale at UK dealers, from £21,950 to £27,999, as of 2 November 2026.
The 3 closest to this car in mileage:
- 2020 Audi A8 S Line, 3.0 diesel saloon, grey. Mileage: 41,815 miles. Price: £26,594, £1,094 more than this car. Dealer: Ping Vehicles in Solihull. AskCar page: https://askcar.co.uk/car/audi-a8-2020-b54f59ec6eae
- 2020 Audi A8 S Line, 3.0 diesel saloon, grey. Mileage: 44,600 miles. Price: £24,990, £510 less than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/audi-a8-2020-50b354aff66a
- 2020 Audi A8 S Line, 3.0 diesel saloon, black. Mileage: 45,000 miles. Price: £27,590, £2,090 more than this car. Dealer: Group 1 Automotive Whetstone Audi in Whetstone. AskCar page: https://askcar.co.uk/car/audi-a8-2020-e722d3e7d055
Browse all Audi A8 cars for sale · 2020 Audi A8 price guide
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Photos
72 photos of this car are on its AskCar page.
As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.