2020 Mercedes-Benz GLC 4.0 GLC63 V8 BiTurbo AMG S

Overview

• Make: Mercedes-Benz
• Model: GLC
• Trim: AMG S
• Version: 4.0 GLC63 V8 BiTurbo AMG S Auto 4WD Euro 6 (s/s) 5dr SpdS MCT (503 bhp)
• Year: 2020
• Mileage: 20,000 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 4.0 litres, 503 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Other
• CO2: 293 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 20,000 miles, this 2020 Mercedes-Benz GLC AMG S has covered about 33,500 fewer miles than other 2020 Mercedes-Benz GLC cars. The dealer is asking £65,990, which is £15,409 above the AskCar estimate of £50,581. To work out the AskCar estimate, we analyse UK dealer adverts for 2,814 Mercedes-Benz GLC cars across different ages and specifications. It first appeared in our advert records 164 days ago. 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 8 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £15,409 (30%) over the AskCar estimate of £50,581.

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 2,814 priced Mercedes-Benz GLC adverts across different ages and specifications, as of 8 November 2026.

A 2020 Mercedes-Benz GLC with the 4.0 petrol engine is typically advertised at £46,700: the median of the 14 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2020 Mercedes-Benz GLC has been on sale for at least 164 days.

Price history

AskCar first saw this advert on 28 May 2026 at £65,990. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 33,500 miles lower than the median mileage of a 2020 Mercedes-Benz GLC on AskCar.

Similar cars

2 other 2020 Mercedes-Benz GLC AMG S 4.0 petrol automatic SUVs are for sale at UK dealers, from £46,999 to £47,795, as of 8 November 2026.

The 2 closest to this car in mileage:

• 2020 Mercedes-Benz GLC AMG S, 4.0 petrol SUV, black. Mileage: 23,503 miles. Price: £47,795, £18,195 less than this car. Dealer: Hamptons of Surrey in Farnham. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2020-58be00762db1
• 2020 Mercedes-Benz GLC AMG S, 4.0 petrol SUV, silver. Mileage: 38,000 miles. Price: £46,999, £18,991 less than this car. Dealer: Rp Motor Sales in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2020-0cced9b31128