2021 Mercedes-Benz G Class

4.0 G 63 AMG 9G-Tronic 4WD Euro 6 5dr Speedshift Plus (576 bhp)

£137,990

Fair price: within 8% of the typical £149,024 for this model, age and mileage, drawing on 408 adverts of this make and model.

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)
Mileage
21,013 miles
Year
2021
Fuel type
Petrol
Body type
SUV
Engine
4.0 L
Gearbox
Automatic
Power
576 bhp
Seats
5
CO2
369 g/km
Colour
Black
Doors
5
Driven wheels
Four Wheel Drive
Gearbox version
9G-Tronic
Engine badge
AMG
Emissions standard
Euro 6

About this car

This 2021 Mercedes-Benz G Class AMG is advertised with 21,013 miles, approximately 15,100 below the typical mileage for its age. Its asking price of £137,990 is £11,034 below our estimate of £149,024. Our estimate draws on 408 Mercedes-Benz G Class adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 17 days ago, and its asking price has since fallen by £2,000. MOT records show an expiry date of 20 January 2027, and the latest recorded mileage is consistent with the advert. The seller is Group 1 Automotive Mercedes-Benz of Nottingham, based in Nottingham.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 9 October 2026, 17 days ago. Advert duration calculated on 26 October 2026. Net asking-price reduction: £2,000 from the first recorded £139,990. 1 price reduction recorded, the latest observed on 18 October 2026.

Recorded asking prices
Date observedAsking price
9 October 2026£139,990
14 October 2026£139,995
18 October 2026£137,990
23 October 2026£137,990

Price and mileage comparison

Estimated market asking price: £149,024. The asking price is £11,034 below this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 408 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 15,100 miles lower than typical for a 2021 Mercedes-Benz G Class.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 20 January 2027. 18,174 miles at the last test.

18 other cars with the same year, trim, gearbox and fuel are for sale from £35,950 to £179,995.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£35,95060,000 miles
£83,99113,991 miles
£114,99568,200 miles
£115,99065,600 miles
£119,99561,500 miles

These cars have covered 12,719–70,000 miles, compared with 21,013 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

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

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