2021 Mercedes-Benz G Class

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

£139,850

Fair price: within 8% of the typical £138,655 for this model, age and mileage, drawing on 406 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
36,000 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 has covered 36,000 miles. The dealer is asking £139,850, which is £1,195 above our market estimate of £138,655. To estimate its market asking price, we analyse UK dealer adverts for 406 Mercedes-Benz G Class cars across different ages and specifications. We have tracked this advert for 27 days. Ask the dealer why the advert shows fewer miles than the 38,390 recorded at the latest MOT. MOT records show an expiry date of 5 April 2027. The seller is Autobahn Direct, based in Wembley.

Stock data from 21 October 2026.

How we estimate prices and check cars

Price history

First seen on 25 September 2026, 27 days ago. Advert duration calculated on 22 October 2026.

Recorded asking prices
Date observedAsking price
25 September 2026£139,850
10 October 2026£139,850
21 October 2026£139,850

Price and mileage comparison

Estimated market asking price: £138,655. The asking price is £1,195 above 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 406 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 200 miles lower than typical for a 2021 Mercedes-Benz G Class.

Mileage concern: the advertised mileage is below the last MOT reading; ask the dealer to explain.

MOT

MOT valid until 5 April 2027. 38,390 miles at the last test.

19 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 36,000 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

How to contact the dealer, its opening hours and the cheaper cars like this one are on this AskCar page.

Vehicle photos