2020 Mercedes-Benz G Class 4.0 G63 V8 BiTurbo AMG

Overview

• Make: Mercedes-Benz
• Model: G Class
• Trim: AMG
• Version: 4.0 G63 V8 BiTurbo AMG Auto 4WD Euro 6 (s/s) 5dr SpdS+9GT (577 bhp)
• Year: 2020
• Mileage: 69,000 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 4.0 litres, 577 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 69,000 miles, this 2020 Mercedes-Benz G Class AMG has covered about 24,100 more miles than other 2020 Mercedes-Benz G Class cars. The AskCar estimate for this car is £107,786. It is priced at £114,995, which is £7,209 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 413 Mercedes-Benz G Class cars across different ages and specifications. We first recorded this car for sale 164 days ago. It is for sale at Harentor Cars in St. Albans. 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: £7,209 (6%) over the AskCar estimate of £107,786.

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 413 priced Mercedes-Benz G Class adverts across different ages and specifications, as of 8 November 2026.

A 2020 Mercedes-Benz G Class with the 4.0 petrol engine is typically advertised at £125,000: the median of the 31 for sale on AskCar, as of 8 November 2026.

Time on sale

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

Price history

AskCar first saw this advert on 28 May 2026 at £114,995. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 24,100 miles higher than the median mileage of a 2020 Mercedes-Benz G Class on AskCar.

Similar cars

26 other 2020 Mercedes-Benz G Class AMG 4.0 petrol automatic SUVs are for sale at UK dealers, from £107,949 to £240,000, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black. Mileage: 73,008 miles. Price: £109,894, £5,101 less than this car. Dealer: The Gemini Group in Nottingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2020-c288bc452c9e
• 2020 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black. Mileage: 64,595 miles. Price: £114,995, the same price as this car. Dealer: MH Performance in Bradford. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2020-e12513f7f586
• 2020 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black. Mileage: 75,000 miles. Price: £107,949, £7,046 less than this car. Dealer: A1 Ortos in Oldham. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2020-880d642b56ae

• The nearest: 2020 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black, 5 miles from this car. Mileage: 48,700 miles. Price: £122,000, £7,005 more than this car. Dealer: Reverie Autos in Hatfield. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2020-3b34005ec48f