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: 55,266 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 4.0 litres, 577 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 299 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Mercedes-Benz G Class AMG is advertised with 55,266 miles, approximately 3,300 above the typical mileage for its age. Its asking price of £104,490 is £2,134 below the AskCar estimate of £106,624. The AskCar estimate uses 408 UK dealer adverts for the Mercedes-Benz G Class, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 74 days ago. Its asking price has since fallen by £11,500. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Marshall Motor Group Lamborghini Poole, based in Poole. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,134 (2%) under the AskCar estimate of £106,624.

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 408 priced Mercedes-Benz G Class adverts across different ages and specifications, as of 7 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 7 November 2026.

Time on sale

This 2018 Mercedes-Benz G Class has been on sale for at least 74 days.

Price history

AskCar first saw this advert on 25 August 2026 at £115,990. Its asking price is now £104,490, £11,500 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 25 August 2026: £115,990
• 3 September 2026: £115,890
• 13 September 2026: £114,990
• 30 September 2026: £108,990
• 10 October 2026: £107,990
• 16 October 2026: £106,990
• 21 October 2026: £104,900
• 29 October 2026: £104,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 30 November 2026.

It has had 7 MOTs. The latest, on 28 November 2025, passed.

Advisories at the latest test: stop lamp(s) with a multiple light source up to 1/2 not functioning high level lamp.

Mileage at that test: 51,001 miles, which matches the advertised 55,266 miles.

Advertised mileage is about 3,300 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 7 November 2026.

The 3 closest to this car in mileage:

• 2018 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black. Mileage: 55,000 miles. Price: £119,995, £15,505 more than this car. Dealer: TCC Essex in Hainault. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2018-6f504557a718
• 2018 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black. Mileage: 54,500 miles. Price: £106,495, £2,005 more than this car. Dealer: Reverie Autos in Hatfield. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2018-65a44c636dc0
• 2018 Mercedes-Benz G Class AMG, 4.0 petrol SUV, black. Mileage: 61,000 miles. Price: £119,995, £15,505 more than this car. Dealer: Middlesex Motors in Hillingdon. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2018-09325ec08c89

• The nearest: 2018 Mercedes-Benz G Class AMG, 4.0 petrol SUV, blue, 39 miles from this car. Mileage: 38,492 miles. Price: £118,795, £14,305 more than this car. Dealer: Gibbons Automotive in Westbury. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2018-89ef4d9480f5