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: 23,503 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 4.0 litres, 503 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 293 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mercedes-Benz GLC AMG S has covered 23,503 miles, around 30,000 fewer miles than is typical for its age. Its asking price of £47,795 is £2,097 below the AskCar estimate of £49,892. The AskCar estimate uses 2,814 UK dealer adverts for the Mercedes-Benz GLC, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 164 days ago, the asking price has dropped by £2,200. The recorded MOT expired on 17 October 2026, so ask the dealer whether it has been renewed. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Hamptons of Surrey in Farnham. 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: £2,097 (4%) under the AskCar estimate of £49,892.

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 £49,995. Its asking price is now £47,795, £2,200 less. The latest price cut was seen on 20 October 2026.

Price changes recorded:

• 28 May 2026: £49,995
• 8 August 2026: £48,995
• 21 August 2026: £47,995
• 20 October 2026: £47,795

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: the latest record we hold ran out on 17 October 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 18 October 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 22,725 miles, which matches the advertised 23,503 miles.

Advertised mileage is about 30,000 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 £65,990, as of 8 November 2026.

The 2 closest to this car in mileage:

• 2020 Mercedes-Benz GLC AMG S, 4.0 petrol SUV, other. Mileage: 20,000 miles. Price: £65,990, £18,195 more than this car. Dealer: 51 X in Birmingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2020-bed6a49a157d
• 2020 Mercedes-Benz GLC AMG S, 4.0 petrol SUV, silver. Mileage: 38,000 miles. Price: £46,999, £796 less than this car. Dealer: Rp Motor Sales in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2020-0cced9b31128