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: 64,595 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 4.0 litres, 577 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 299 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mercedes-Benz G Class AMG has covered 64,595 miles, around 19,700 more miles than is typical for its age. The AskCar estimate for this car is £111,239. It is priced at £114,995, which is £3,756 above that estimate. The AskCar estimate draws on 413 Mercedes-Benz G Class adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 9 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is MH Performance, based in Bradford. 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: £3,756 (3%) over the AskCar estimate of £111,239.

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 9 days.

Price history

AskCar first saw this advert on 30 October 2026 at £114,995. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 6 September 2027.

It has had 4 MOTs. The latest, on 7 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 63,749 miles, which matches the advertised 64,595 miles.

Advertised mileage is about 19,700 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: 60,300 miles. Price: £109,990, £5,005 less than this car. Dealer: Halesowen Trade Centre in Birmingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2020-d88c108f2d0d
• 2020 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black. Mileage: 69,000 miles. Price: £114,995, the same price as this car. Dealer: Harentor Cars in St Albans. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2020-22db036e53e5
• 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

• The nearest: 2020 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black, 24 miles from this car. 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