2020 Mercedes-Benz G Class

4.0 Auto 4WD Euro 6 5dr (576 bhp)

£139,995

Fair price: within 8% of the typical £147,434 for this model, age and mileage, drawing on 407 adverts of this make and model.

Overview

Make: Mercedes-Benz
Model: G Class
Version: 4.0 Auto 4WD Euro 6 5dr (576 bhp)
Mileage: 21,200 miles
Year: 2020
Fuel type: Petrol
Body type: SUV
Engine: 4.0 L
Gearbox: Automatic
Power: 576 bhp
Seats: 5
CO2: 343 g/km
Colour: Grey
Doors: 5
Driven wheels: Four Wheel Drive
Emissions standard: Euro 6

About this car

With 21,200 miles on the clock, this 2020 Mercedes-Benz G Class has done roughly 25,200 fewer miles than a typical 2020 Mercedes-Benz G Class. The dealer is asking £139,995, which is £7,439 below our market estimate of £147,434. Our estimate draws on 407 Mercedes-Benz G Class adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 21 days. Its recorded MOT is valid until 9 April 2027, and its advertised mileage is consistent with the latest MOT reading. It is for sale at Jack Henry Group in Tonbridge.

Stock data from 22 October 2026.

How we estimate prices and check cars

Price history

First seen on 3 October 2026, 21 days ago. Advert duration calculated on 24 October 2026.

Recorded asking prices
Date observed	Asking price
3 October 2026	£139,995
22 October 2026	£139,995

Price and mileage comparison

Estimated market asking price: £147,434. The asking price is £7,439 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 407 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 25,200 miles lower than typical for a 2020 Mercedes-Benz G Class.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 9 April 2027. 19,123 miles at the last test.

3 other cars with the same year, trim, gearbox and fuel are for sale from £126,950 to £396,000.

Other matching cars
Asking price	Mileage
£126,950	45,200 miles
£195,000	16,000 miles
£396,000	70 miles

These cars have covered 70–45,200 miles, compared with 21,200 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

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Vehicle photos

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