2021 Mercedes-Benz G Class 4.0 AMG

Overview

• Make: Mercedes-Benz
• Model: G Class
• Trim: AMG
• Version: 4.0 G 63 AMG 9G-Tronic 4WD Euro 6 5dr Speedshift Plus (576 bhp)
• Year: 2021
• Mileage: 61,500 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 4.0 litres, 576 bhp
• Gearbox: Automatic (9G-Tronic)
• Drive: Four-wheel drive
• Colour: Black
• CO2: 369 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 61,500 miles on the clock, this 2021 Mercedes-Benz G Class AMG has done roughly 25,500 more miles than a typical 2021 Mercedes-Benz G Class. The AskCar estimate for this car is £120,496. It is priced at £118,995, which is £1,501 below that estimate. The AskCar estimate uses 413 UK dealer adverts for the Mercedes-Benz G Class, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 30 days ago. Its asking price has since fallen by £3,500. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at CC Cars in Dukinfield. 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: £1,501 (1%) under the AskCar estimate of £120,496.

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 30 days.

Price history

AskCar first saw this advert on 9 October 2026 at £122,495. Its asking price is now £118,995, £3,500 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

• 9 October 2026: £122,495
• 17 October 2026: £121,995
• 20 October 2026: £119,995
• 7 November 2026: £118,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 25 January 2027.

It has had 3 MOTs. The latest, on 26 January 2026, passed.

Advisories at the latest test: offside rear nail in tyre.

Mileage at that test: 55,986 miles, which matches the advertised 61,500 miles.

Advertised mileage is about 25,500 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: 65,600 miles. Price: £115,990, £3,005 less than this car. Dealer: 51 X in Birmingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2021-3afb1ad52c7c
• 2021 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black. Mileage: 68,000 miles. Price: £121,995, £3,000 more than this car. Dealer: CarPlex in Hailsham. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2021-af0eb0d323e5
• 2021 Mercedes-Benz G Class AMG, 4.0 petrol SUV, silver. Mileage: 68,200 miles. Price: £114,995, £4,000 less than this car. Dealer: Motorvana in Manchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2021-958eb232ea89