2021 Mercedes-Benz G Class

2.9 G400d AMG Line Premium Plus G-Tronic 4WD Euro 6 (s/s) 5dr (325 bhp)

£99,989

Fair price: within 8% of the typical £96,414 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 PLUS
Version: 2.9 G400d AMG Line Premium Plus G-Tronic 4WD Euro 6 (s/s) 5dr (325 bhp)
Mileage: 39,000 miles
Year: 2021
Fuel type: Diesel
Body type: SUV
Engine: 2.9 L
Gearbox: Automatic
Power: 325 bhp
Seats: 5
CO2: 289 g/km
Colour: Blue
Doors: 5
Driven wheels: Four Wheel Drive
Gearbox version: G-Tronic
Engine badge: G400d
Emissions standard: Euro 6

About this car

At 39,000 miles, this 2021 Mercedes-Benz G Class AMG Line Premium Plus has covered about 2,900 more miles than other 2021 Mercedes-Benz G Class cars. Our estimated market asking price is £96,414. This car is advertised at £99,989, which is £3,575 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. The asking price is now £5,000 lower than when we first recorded the advert 39 days ago. Its MOT is recorded as valid until 11 August 2027. The advertised mileage is consistent with the latest MOT reading. It is advertised by Blackstone Motors in White City.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 16 September 2026, 39 days ago. Advert duration calculated on 25 October 2026. Net asking-price reduction: £5,000 from the first recorded £104,989. 1 price reduction recorded, the latest observed on 9 October 2026.

Recorded asking prices
Date observed	Asking price
16 September 2026	£104,989
9 October 2026	£99,989
23 October 2026	£99,989

Price and mileage comparison

Estimated market asking price: £96,414. The asking price is £3,575 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 2,900 miles higher than typical for a 2021 Mercedes-Benz G Class.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 11 August 2027. 38,668 miles at the last test.

2 other cars with the same year, trim, gearbox and fuel are for sale from £99,900 to £104,990.

Other matching cars
Asking price	Mileage
£99,900	19,641 miles
£104,990	35,000 miles

These cars have covered 19,641–35,000 miles, compared with 39,000 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

Vehicle photos

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