2020 Mercedes-Benz C Class 3.0 AMG Premium

Overview

• Make: Mercedes-Benz
• Model: C Class
• Trim: AMG Premium
• Version: 3.0 AMG Premium Auto 4WD Euro 6 2dr (384 bhp)
• Year: 2020
• Mileage: 43,521 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres, 384 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 228 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 43,521 miles, this 2020 Mercedes-Benz C Class AMG Premium has covered about 4,500 fewer miles than other 2020 Mercedes-Benz C Class cars. Its asking price of £28,490 is £1,600 below the AskCar estimate of £30,090. The AskCar estimate draws on 4,562 Mercedes-Benz C Class adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 44 days ago. Its asking price has since fallen by £1,505. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Group 1 Automotive Mercedes-Benz of Nottingham, based in Nottingham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,600 (5%) under the AskCar estimate of £30,090.

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 4,562 priced Mercedes-Benz C Class adverts across different ages and specifications, as of 8 November 2026.

A 2020 Mercedes-Benz C Class with the 3.0 petrol engine is typically advertised at £27,000: the median of the 26 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2020 Mercedes-Benz C Class has been on sale for at least 44 days.

Price history

AskCar first saw this advert on 25 September 2026 at £29,995. Its asking price is now £28,490, £1,505 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 25 September 2026: £29,995
• 30 September 2026: £29,890
• 6 October 2026: £29,790
• 14 October 2026: £29,700
• 16 October 2026: £28,990
• 25 October 2026: £28,790
• 3 November 2026: £28,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 10 August 2027.

It failed its MOT on 28 July 2026 (offside front shock absorbers has a serious fluid leak) and passed 14 days later, on 11 August 2026.

There were no advisories at the latest test.

Mileage at that test: 42,755 miles, which matches the advertised 43,521 miles.

Advertised mileage is about 4,500 miles lower than the median mileage of a 2020 Mercedes-Benz C Class on AskCar.

Similar cars

3 other 2020 Mercedes-Benz C Class AMG Premium 3.0 petrol automatic convertibles are for sale at UK dealers, from £26,950 to £28,995, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz C Class AMG Premium, 3.0 petrol convertible, blue. Mileage: 36,750 miles. Price: £28,995, £505 more than this car. Dealer: Position One Motor Company in Leatherhead. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-a7852d1f7402
• 2020 Mercedes-Benz C Class AMG Premium, 3.0 petrol convertible, black. Mileage: 56,800 miles. Price: £26,950, £1,540 less than this car. Dealer: Select Performance and Prestige in Hedsor. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-b486a812b448
• 2020 Mercedes-Benz C Class AMG Premium, 3.0 petrol convertible, white. Mileage: 28,871 miles. Price: £26,995, £1,495 less than this car. Dealer: Elmside Garage in Beckenham. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-ee3c00dfd8da