2020 Mercedes-Benz GLC 4.0 GLC63 V8 BiTurbo AMG S Premium Plus

Overview

• Make: Mercedes-Benz
• Model: GLC
• Trim: AMG S Premium Plus
• Version: 4.0 GLC63 V8 BiTurbo AMG S Premium Plus Auto 4WD Euro 6 (s/s) 5dr SpdS MCT (503 bhp)
• Year: 2020
• Mileage: 43,719 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 4.0 litres, 503 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Silver
• CO2: 295 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mercedes-Benz GLC AMG S Premium Plus is advertised with 43,719 miles, approximately 9,700 below the typical mileage for its age. Priced at £46,500, it is advertised £1,129 below the AskCar estimate of £47,629. The AskCar estimate draws on 2,776 Mercedes-Benz GLC adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 62 days ago, and its asking price has since fallen by £1,550. The latest recorded MOT expiry date is 9 October 2026, which has passed. Confirm its status with the dealer. The government's MOT record matches its advertised mileage. It is advertised by Saxtons.co.uk in Chelmsford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,129 (2%) under the AskCar estimate of £47,629.

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 2,776 priced Mercedes-Benz GLC adverts across different ages and specifications, as of 9 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 9 November 2026.

Time on sale

This 2020 Mercedes-Benz GLC has been on sale for at least 62 days.

Price history

AskCar first saw this advert on 8 September 2026 at £48,050. Its asking price is now £46,500, £1,550 less. The latest price cut was seen on 6 November 2026.

Price changes recorded:

• 8 September 2026: £48,050
• 17 September 2026: £47,850
• 30 September 2026: £47,700
• 14 October 2026: £46,700
• 6 November 2026: £46,500

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: the latest record we hold ran out on 9 October 2026; ask the dealer for the current MOT.

It failed its MOT on 1 October 2025 (offside rear tyre tread depth below requirements of 1.6mm; offside rear tyre has ply or cords exposed) and passed later the same day.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge; nearside rear brake pad(s) wearing thin; offside rear brake pad(s) wearing thin.

Mileage at that test: 37,145 miles, which matches the advertised 43,719 miles.

Advertised mileage is about 9,700 miles lower than the median mileage of a 2020 Mercedes-Benz GLC on AskCar.

Similar cars

5 other 2020 Mercedes-Benz GLC AMG S Premium Plus 4.0 petrol automatic SUVs are for sale at UK dealers, from £41,950 to £57,490, as of 9 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz GLC AMG S Premium Plus, 4.0 petrol SUV, red. Mileage: 50,426 miles. Price: £46,995, £495 more than this car. Dealer: Position One Motor Company in Leatherhead. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2020-4579f53e0b4a
• 2020 Mercedes-Benz GLC AMG S Premium Plus, 4.0 petrol SUV, blue. Mileage: 28,000 miles. Price: £51,995, £5,495 more than this car. Dealer: Motoplex in York. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2020-a399d6590bfb
• 2020 Mercedes-Benz GLC AMG S Premium Plus, 4.0 petrol SUV, black. Mileage: 15,000 miles. Price: £57,490, £10,990 more than this car. Dealer: Tiley of Bristol in Bristol. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2020-8768765b906e

• The nearest: 2020 Mercedes-Benz GLC AMG S Premium Plus, 4.0 petrol SUV, blue, 31 miles from this car. Mileage: 83,410 miles. Price: £41,950, £4,550 less than this car. Dealer: James Richards Car Sales in Stevenage. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2020-9f30aca494cb