2021 Audi S8 4.0 TFSI V8
Price: £34,990. Fair price: £2,189 (5%) under the AskCar estimate of £37,179, our expected asking price for this car from its model, age, mileage and specification, drawing on 45 priced Audi S8 adverts on AskCar as of 2 November 2026.
AskCar lists 46 used Audi S8 from 36 UK dealerships, as of 2 November 2026.
Overview
- Make: Audi
- Model: S8
- Version: 4.0 TFSI V8 Tiptronic 4WD Euro 6 (s/s) 4dr (563 bhp)
- Year: 2021
- Mileage: 82,000 miles
- Fuel: Petrol
- Body: Saloon, 4 doors, 5 seats
- Engine: 4.0 litres, 563 bhp
- Gearbox: Automatic (Tiptronic)
- Drive: Four-wheel drive
- Colour: Grey
- CO2: 262 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
The advertised mileage for this 2021 Audi S8 is 82,000 miles. Its asking price of £34,990 is £2,189 below the AskCar estimate of £37,179. The AskCar estimate uses 45 UK dealer adverts for the Audi S8, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 158 days ago. The latest MOT recorded 94,972 miles, above the advertised mileage. Check this with the dealer. Its recorded MOT is valid until 10 March 2027. The seller is 51 X, based in Birmingham. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Fair price: £2,189 (5%) under the AskCar estimate of £37,179.
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 45 priced Audi S8 adverts across different ages and specifications, as of 2 November 2026.
Time on sale
This 2021 Audi S8 has been on sale for at least 158 days.
Price history
AskCar first saw this advert on 28 May 2026 at £34,990. 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 2 November 2026: valid until 10 March 2027.
It has had 3 MOTs. The latest, on 11 March 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 94,972 miles. The advert says 82,000 miles, fewer than the MOT record, so ask the dealer which is right.
Browse all Audi S8 cars for sale · 2021 Audi S8 price guide
Photos
20 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.