2020 Mercedes-Benz S Class 4.0 AMG
Price: £79,900. Above the going rate: £22,599 (39%) over the AskCar estimate of £57,301, our expected asking price for this car from its model, age, mileage and specification, drawing on 573 priced Mercedes-Benz S Class adverts on AskCar as of 10 November 2026.
AskCar lists 637 used Mercedes-Benz S Class from 445 UK dealerships, as of 10 November 2026.
Overview
- Make: Mercedes-Benz
- Model: S Class
- Trim: AMG
- Version: 4.0 AMG Auto RWD Euro 6 2dr
- Year: 2020
- Mileage: 29,990 miles
- Fuel: Petrol
- Body: Convertible, 2 doors, 4 seats
- Engine: 4.0 litres
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: White
- CO2: 272 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
At 29,990 miles, this 2020 Mercedes-Benz S Class AMG has covered about 48,700 fewer miles than other 2020 Mercedes-Benz S Class cars. The dealer is asking £79,900, which is £22,599 above the AskCar estimate of £57,301. To work out the AskCar estimate, we analyse UK dealer adverts for 573 Mercedes-Benz S Class cars across different ages and specifications. We first saw this car advertised 147 days ago. Its asking price has since fallen by £7,000. The government's MOT record matches its advertised mileage. It is advertised by Baytree Cars in Derby. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 10 November 2026.
Baytree Cars is rated 4.8 out of 5 on Google.
Price
Above the going rate: £22,599 (39%) over the AskCar estimate of £57,301.
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 573 priced Mercedes-Benz S Class adverts across different ages and specifications, as of 10 November 2026.
Time on sale
This 2020 Mercedes-Benz S Class has been on sale for at least 147 days.
Price history
AskCar first saw this advert on 16 June 2026 at £86,900. Its asking price is now £79,900, £7,000 less. The latest price cut was seen on 23 October 2026.
Price changes recorded:
- 16 June 2026: £86,900
- 20 August 2026: £85,900
- 23 October 2026: £79,900
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 10 November 2026: valid until 12 May 2027.
It has had 4 MOTs. The latest, on 13 May 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 29,927 miles, which matches the advertised 29,990 miles.
Advertised mileage is about 48,700 miles lower than the median mileage of a 2020 Mercedes-Benz S Class on AskCar.
Browse all Mercedes-Benz S Class cars for sale · 2020 Mercedes-Benz S Class price guide
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- Used Mercedes-Benz S Class AMG prices
- Used petrol Mercedes-Benz S Class for sale
- Used Mercedes-Benz S Class for sale near Derby
Photos
42 photos of this car are on its AskCar page.
As of 10 November 2026, AskCar lists 591,054 cars and vans from 12,888 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.