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: 21,000 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 has covered 21,000 miles. Its asking price of £165,950 is £38,428 above the AskCar estimate of £127,522. 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 have tracked this advert for 163 days. Ask the dealer why the advert shows fewer miles than the 34,033 recorded at the latest MOT. Its recorded MOT is valid until 11 February 2027. You can find this car at Westside Cars in Wednesbury. 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

Above the going rate: £38,428 (30%) over the AskCar estimate of £127,522.

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 163 days.

Price history

AskCar first saw this advert on 28 May 2026 at £165,950. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 11 February 2027.

It has had 5 MOTs. The latest, on 12 February 2026, passed.

Advisories at the latest test: nearside rear child seat fitted not allowing full inspection of adult belt.

Mileage at that test: 34,033 miles. The advert says 21,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 31,000 miles lower 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 £119,995, 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: 24,000 miles. Price: £119,000, £46,950 less than this car. Dealer: Motonet.com in Coventry. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2018-650b9f55ba03
• 2018 Mercedes-Benz G Class AMG, 4.0 petrol SUV, blue. Mileage: 38,492 miles. Price: £118,795, £47,155 less than this car. Dealer: Gibbons Automotive in Westbury. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2018-89ef4d9480f5
• 2018 Mercedes-Benz G Class AMG, 4.0 petrol SUV, blue. Mileage: 47,000 miles. Price: £116,995, £48,955 less than this car. Dealer: GB Vehicles in Edgware. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2018-ccfa7d7c5a44