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: 25,000 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

At 25,000 miles, this 2021 Mercedes-Benz G Class AMG has covered about 11,000 fewer miles than other 2021 Mercedes-Benz G Class cars. Priced at £169,995, it is advertised £23,524 above the AskCar estimate of £146,471. 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 saw this car advertised 164 days ago. Its asking price has since fallen by £10,000. We checked its advertised mileage against the government's MOT record, and they match. The seller is My Next Car, based in Sandy. 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

Above the going rate: £23,524 (16%) over the AskCar estimate of £146,471.

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 164 days.

Price history

AskCar first saw this advert on 28 May 2026 at £179,995. Its asking price is now £169,995, £10,000 less. The latest price cut was seen on 4 June 2026.

Price changes recorded:

• 29 May 2026: £179,995
• 4 June 2026: £169,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 9 April 2027.

It has had 3 MOTs. The latest, on 10 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 23,818 miles, which matches the advertised 25,000 miles.

Advertised mileage is about 11,000 miles lower 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: 21,013 miles. Price: £136,490, £33,505 less than this car. Dealer: Group 1 Automotive Mercedes-Benz of Nottingham in Nottingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2021-231263506eb5
• 2021 Mercedes-Benz G Class AMG, 4.0 petrol SUV, grey. Mileage: 30,000 miles. Price: £133,995, £36,000 less than this car. Dealer: Andreas Prestige in Hillingdon. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2021-57de5cb88b13
• 2021 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black. Mileage: 30,000 miles. Price: £143,995, £26,000 less than this car. Dealer: Sedgley Group in Prestwich. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2021-37c2c15100ef

• The nearest: 2021 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black, under a mile from this car. Mileage: 41,640 miles. Price: £134,995, £35,000 less than this car. Dealer: My Next Car in Sandy. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2021-1a104d82e5a7