2021 Mercedes-Benz G Class 4.0 AMG
Price: £179,995. Above the going rate: £22,612 (14%) over the AskCar estimate of £157,383, our expected asking price for this car from its model, age, mileage and specification, drawing on 408 priced Mercedes-Benz G Class adverts on AskCar as of 7 November 2026.
AskCar lists 475 used Mercedes-Benz G Class from 281 UK dealerships, as of 7 November 2026.
Overview
- Make: Mercedes-Benz
- Model: G Class
- Trim: AMG
- Version: 4.0 AMG Auto 4WD Euro 6 5dr (577 bhp)
- Year: 2021
- Mileage: 13,250 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
With 13,250 miles on the clock, this 2021 Mercedes-Benz G Class AMG has done roughly 22,800 fewer miles than a typical 2021 Mercedes-Benz G Class. Priced at £179,995, it is advertised £22,612 above the AskCar estimate of £157,383. The AskCar estimate uses UK dealer asking prices, including 408 Mercedes-Benz G Class adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 43 days. You can find this car at Yorkshire Motor Group in Barnsley. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 7 November 2026.
Price
Above the going rate: £22,612 (14%) over the AskCar estimate of £157,383.
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 408 priced Mercedes-Benz G Class adverts across different ages and specifications, as of 7 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 7 November 2026.
Time on sale
This 2021 Mercedes-Benz G Class has been on sale for at least 43 days.
Price history
AskCar first saw this advert on 25 September 2026 at £179,995. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 22,800 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 £169,995, as of 7 November 2026.
The 3 closest to this car in mileage:
- 2021 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black. Mileage: 12,719 miles. Price: £135,995, £44,000 less than this car. Dealer: MB Specialist in London. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2021-521cdaf18a5d
- 2021 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black. Mileage: 13,991 miles. Price: £83,991, £96,004 less than this car. Dealer: ASM (uk) in Redditch. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2021-98e081a244c6
- 2021 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black. Mileage: 21,013 miles. Price: £136,490, £43,505 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
- The nearest: 2021 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black, 19 miles from this car. Mileage: 43,950 miles. Price: £127,475, £52,520 less than this car. Dealer: Portland Of Bawtry in Doncaster. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2021-a453556f4cc1
Browse all Mercedes-Benz G Class cars for sale · 2021 Mercedes-Benz G Class price guide
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As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.