2021 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: 2021
• Mileage: 70,000 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

This 2021 Mercedes-Benz G Class AMG is advertised with 70,000 miles, approximately 34,000 above the typical mileage for its age. Priced at £124,995, it is advertised £5,919 above the AskCar estimate of £119,076. The AskCar estimate uses 413 UK dealer adverts for the Mercedes-Benz G Class, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 127 days ago, the asking price has dropped by £3,000. It is for sale at The Motoring Team in London. 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: £5,919 (4%) over the AskCar estimate of £119,076.

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 2021 Mercedes-Benz G Class with the 4.0 petrol engine is typically advertised at £136,200: the median of the 30 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2021 Mercedes-Benz G Class has been on sale for at least 127 days.

Price history

AskCar first saw this advert on 4 July 2026 at £127,995. Its asking price is now £124,995, £3,000 less. The latest price cut was seen on 24 October 2026.

Price changes recorded:

• 5 July 2026: £127,995
• 24 October 2026: £124,995

Mileage and MOT

Advertised mileage is about 34,000 miles higher than the median mileage of a 2021 Mercedes-Benz G Class on AskCar.

Similar cars

19 other 2021 Mercedes-Benz G Class AMG 4.0 petrol automatic SUVs are for sale at UK dealers, from £83,991 to £179,995, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black. Mileage: 71,413 miles. Price: £121,997, £2,998 less than this car. Dealer: Bell Truck and Van. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2021-09f434efef34
• 2021 Mercedes-Benz G Class AMG, 4.0 petrol SUV, silver. Mileage: 68,200 miles. Price: £114,995, £10,000 less than this car. Dealer: Motorvana in Manchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2021-958eb232ea89
• 2021 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black. Mileage: 68,000 miles. Price: £121,995, £3,000 less than this car. Dealer: CarPlex in Hailsham. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2021-af0eb0d323e5

• The nearest: 2021 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black, 9 miles from this car. Mileage: 36,000 miles. Price: £129,995, £5,000 more than this car. Dealer: First Autos in Watford. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2021-ef618097de07