2021 Mercedes-Benz G Class 5.4 AMG

Price: £32,950. Far below the going rate: £106,042 (76%) under the AskCar estimate of £138,992, our expected asking price for this car from its model, age, mileage and specification, drawing on 411 priced Mercedes-Benz G Class adverts on AskCar as of 10 November 2026. Worth asking the dealer why.

AskCar lists 481 used Mercedes-Benz G Class from 281 UK dealerships, as of 10 November 2026.

Overview

  • Make: Mercedes-Benz
  • Model: G Class
  • Trim: AMG
  • Version: 5.4 AMG Auto 4WD Euro 5 5dr (499 bhp)
  • Year: 2021
  • Mileage: 60,000 miles
  • Fuel: Petrol
  • Body: SUV, 5 doors, 5 seats
  • Engine: 5.4 litres, 499 bhp
  • Gearbox: Automatic
  • Drive: Four-wheel drive
  • Colour: White
  • CO2: 372 g/km
  • Emissions standard: Euro 5, ULEZ compliant

About this car

With 60,000 miles on the clock, this 2021 Mercedes-Benz G Class AMG has done roughly 24,000 more miles than a typical 2021 Mercedes-Benz G Class. The dealer is asking £32,950, which is £106,042 below the AskCar estimate of £138,992. We recommend confirming the advertised price and vehicle details. The AskCar estimate uses UK dealer asking prices, including 411 Mercedes-Benz G Class adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 166 days ago. Its asking price has since fallen by £7,000. It is advertised by Quality Motor Company in Iver. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

Far below the going rate: £106,042 (76%) under the AskCar estimate of £138,992. Worth asking the dealer why.

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 411 priced Mercedes-Benz G Class adverts across different ages and specifications, as of 10 November 2026.

Time on sale

This 2021 Mercedes-Benz G Class has been on sale for at least 166 days.

Price history

AskCar first saw this advert on 28 May 2026 at £39,950. Its asking price is now £32,950, £7,000 less. The latest price cut was seen on 2 November 2026.

Price changes recorded:

  • 28 May 2026: £39,950
  • 23 July 2026: £38,950
  • 29 July 2026: £37,950
  • 7 August 2026: £36,950
  • 4 October 2026: £35,950
  • 2 November 2026: £32,950

Mileage and MOT

Advertised mileage is about 24,000 miles higher than the median mileage of a 2021 Mercedes-Benz G Class on AskCar.

Browse all Mercedes-Benz G Class cars for sale · 2021 Mercedes-Benz G Class price guide

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Photos

78 photos of this car are on its AskCar page.

As of 10 November 2026, AskCar lists 591,054 cars and vans from 12,888 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.