2020 Mercedes-Benz C Class 3.0 C43 V6 AMG Premium Plus

Overview

• Make: Mercedes-Benz
• Model: C Class
• Trim: AMG Premium Plus
• Version: 3.0 C43 V6 AMG Premium Plus G-Tronic+ 4WD Euro 6 (s/s) 2dr Cabriolet (385 bhp)
• Year: 2020
• Mileage: 22,837 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres, 385 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Four-wheel drive
• Colour: Red
• CO2: 218 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mercedes-Benz C Class AMG Premium Plus is advertised with 22,837 miles, approximately 25,200 below the typical mileage for its age. The AskCar estimate for this car is £33,044. It is priced at £30,499, which is £2,545 below that estimate. The AskCar estimate draws on 4,622 Mercedes-Benz C Class adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 43 days ago, the asking price has dropped by £500. We checked its advertised mileage against the government's MOT record, and they match. The seller is Henson Car Store, based in Newcastle Upon Tyne. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,545 (7%) under the AskCar estimate of £33,044.

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 4,622 priced Mercedes-Benz C Class adverts across different ages and specifications, as of 7 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 7 November 2026.

Time on sale

This 2020 Mercedes-Benz C Class has been on sale for at least 43 days.

Price history

AskCar first saw this advert on 25 September 2026 at £30,999. Its asking price is now £30,499, £500 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 25 September 2026: £30,999
• 30 October 2026: £30,499

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 7 April 2027.

It has had 5 MOTs. The latest, on 8 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 18,038 miles, which matches the advertised 22,837 miles.

Advertised mileage is about 25,200 miles lower than the median mileage of a 2020 Mercedes-Benz C Class on AskCar.

Similar cars

2 other 2020 Mercedes-Benz C Class AMG Premium Plus 3.0 petrol automatic convertibles are for sale at UK dealers, from £25,690 to £29,989, as of 7 November 2026.

The 2 closest to this car in mileage:

• 2020 Mercedes-Benz C Class AMG Premium Plus, 3.0 petrol convertible, blue. Mileage: 27,000 miles. Price: £29,989, £510 less than this car. Dealer: Blackstone Motors in Brent. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-f28fcfe8e9a4
• 2020 Mercedes-Benz C Class AMG Premium Plus, 3.0 petrol convertible, black. Mileage: 42,400 miles. Price: £25,690, £4,809 less than this car. Dealer: UK Wheels in Edgware. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-39f729cbc22d