2021 Mercedes-Benz G Class

2.9 G400d AMG Line Premium Auto 4WD Euro 6 5dr (325 bhp)

£124,995

Above the going rate: £16,709 over the typical £108,286 for this model, age and mileage, drawing on 408 adverts of this make and model.

Overview

Make
Mercedes-Benz
Model
G Class
Trim
AMG LINE PREMIUM
Version
2.9 G400d AMG Line Premium Auto 4WD Euro 6 5dr (325 bhp)
Mileage
40,000 miles
Year
2021
Fuel type
Diesel
Body type
SUV
Engine
2.9 L
Gearbox
Automatic
Power
325 bhp
Seats
5
CO2
281 g/km
Colour
Grey
Doors
5
Driven wheels
Four Wheel Drive
Engine badge
G400d
Emissions standard
Euro 6

About this car

This 2021 Mercedes-Benz G Class AMG Line Premium is advertised with 40,000 miles on the clock. Our estimated market asking price is £108,286. This car is advertised at £124,995, which is £16,709 above that figure. To estimate its market asking price, we analyse UK dealer adverts for 408 Mercedes-Benz G Class cars across different ages and specifications. We have tracked this advert for 150 days. The last MOT shows 43,806 miles, more than the advert. This is worth checking with the dealer. Its recorded MOT is valid until 29 April 2027. It is for sale at CarPlex in Hailsham.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 28 May 2026, 150 days ago. Advert duration calculated on 25 October 2026.

Recorded asking prices
Date observedAsking price
29 May 2026£124,995
7 July 2026£124,995
23 October 2026£124,995

Price and mileage comparison

Estimated market asking price: £108,286. The asking price is £16,709 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 408 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 3,900 miles higher 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 29 April 2027. 43,806 miles at the last test.

8 other cars with the same year, trim, gearbox and fuel are for sale from £74,995 to £117,495.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£74,995102,000 miles
£87,98966,000 miles
£89,94858,000 miles
£89,99066,552 miles
£92,99955,000 miles

These cars have covered 36,743–102,000 miles, compared with 40,000 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

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