2018 Mercedes-Benz G Class 4.0 G63 V8 BiTurbo AMG

Overview

• Make: Mercedes-Benz
• Model: G Class
• Trim: AMG
• Version: 4.0 G63 V8 BiTurbo AMG Auto 4WD Euro 6 (s/s) 5dr SpdS+9GT (577 bhp)
• Year: 2018
• Mileage: 62,000 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 4.0 litres, 577 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 299 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Mercedes-Benz G Class AMG is advertised with 62,000 miles, approximately 10,000 above the typical mileage for its age. The AskCar estimate for this car is £102,662. It is priced at £103,990, which is £1,328 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 414 Mercedes-Benz G Class cars across different ages and specifications. Since we first spotted the advert 132 days ago, the asking price has dropped by £4,000. The government's MOT record matches its advertised mileage. It is for sale at Monaco Motorsports in Bolton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,328 (1%) over the AskCar estimate of £102,662.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 414 priced Mercedes-Benz G Class adverts across different ages and specifications, as of 9 November 2026.

A 2018 Mercedes-Benz G Class with the 4.0 petrol engine is typically advertised at £117,900: the median of the 16 for sale on AskCar, as of 9 November 2026.

Time on sale

This 2018 Mercedes-Benz G Class has been on sale for at least 132 days.

Price history

AskCar first saw this advert on 30 June 2026 at £107,990. Its asking price is now £103,990, £4,000 less. The latest price cut was seen on 13 July 2026.

Price changes recorded:

• 30 June 2026: £107,990
• 13 July 2026: £103,990

Mileage and MOT

It failed its MOT on 10 December 2024 and passed 29 days later, on 8 January 2025.

There were no advisories at the latest test.

Mileage at that test: 49,078 miles, which matches the advertised 62,000 miles.

Advertised mileage is about 10,000 miles higher than the median mileage of a 2018 Mercedes-Benz G Class on AskCar.

Similar cars

10 other 2018 Mercedes-Benz G Class AMG 4.0 petrol automatic SUVs are for sale at UK dealers, from £99,500 to £165,950, as of 9 November 2026.

The 3 closest to this car in mileage:

• 2018 Mercedes-Benz G Class AMG, 4.0 petrol SUV, grey. Mileage: 62,569 miles. Price: £103,990, the same price as this car. Dealer: Group 1 Automotive Mercedes-Benz of Stevenage in Stevenage. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2018-f24644013a04
• 2018 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black. Mileage: 61,000 miles. Price: £119,995, £16,005 more than this car. Dealer: Middlesex Motors in Hillingdon. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2018-09325ec08c89
• 2018 Mercedes-Benz G Class AMG, 4.0 petrol SUV, blue. Mileage: 55,266 miles. Price: £104,490, £500 more than this car. Dealer: Marshall Motor Group Lamborghini Poole in Poole. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2018-12df1008446b

• The nearest: 2018 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black, 73 miles from this car. Mileage: 21,000 miles. Price: £165,950, £61,960 more than this car. Dealer: Westside Cars in Wednesbury. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2018-ddf836a476bc