2020 Mercedes-Benz G Class

4.0 9G-Tronic 4WD Euro 6 5dr (576 bhp)

£126,950

Fair price: within 8% of the typical £133,236 for this model, age and mileage, drawing on 408 adverts of this make and model.

Overview

Make: Mercedes-Benz
Model: G Class
Version: 4.0 9G-Tronic 4WD Euro 6 5dr (576 bhp)
Mileage: 45,200 miles
Year: 2020
Fuel type: Petrol
Body type: SUV
Engine: 4.0 L
Gearbox: Automatic
Power: 576 bhp
Seats: 5
CO2: 369 g/km
Colour: Grey
Doors: 5
Driven wheels: Four Wheel Drive
Gearbox version: 9G-Tronic
Emissions standard: Euro 6

About this car

The advertised mileage for this 2020 Mercedes-Benz G Class is 45,200 miles. At £126,950, it is advertised £6,286 below our estimated market asking price of £133,236. Our estimate draws on 408 Mercedes-Benz G Class adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. The asking price is now £3,040 lower than when we first recorded the advert 39 days ago. Its recorded MOT is valid until 18 March 2027, and its advertised mileage is consistent with the latest MOT reading. The seller is Stratstone Mercedes-Benz of Chelmsford, based in Chelmsford.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 17 September 2026, 39 days ago. Advert duration calculated on 26 October 2026. Net asking-price reduction: £3,040 from the first recorded £129,990. 4 price reductions recorded, the latest observed on 19 October 2026.

Recorded asking prices
Date observed	Asking price
17 September 2026	£129,990
25 September 2026	£128,767
7 October 2026	£128,210
8 October 2026	£127,990
19 October 2026	£126,950
23 October 2026	£126,950

Price and mileage comparison

Estimated market asking price: £133,236. The asking price is £6,286 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.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 18 March 2027. 41,455 miles at the last test.

3 other cars with the same year, trim, gearbox and fuel are for sale from £139,995 to £396,000.

Other matching cars
Asking price	Mileage
£139,995	21,200 miles
£195,000	16,000 miles
£396,000	70 miles

These cars have covered 70–21,200 miles, compared with 45,200 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 · 2020 Mercedes-Benz G Class price guide

Vehicle photos

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