2018 Mercedes-Benz G Class 5.5 G63 V8 BiTurbo AMG
Price: £64,995. Good value: £14,969 (18%) under the AskCar estimate of £79,964, our expected asking price for this car from its model, age, mileage and specification, drawing on 413 priced Mercedes-Benz G Class adverts on AskCar as of 8 November 2026.
AskCar lists 480 used Mercedes-Benz G Class from 282 UK dealerships, as of 8 November 2026.
Overview
- Make: Mercedes-Benz
- Model: G Class
- Trim: AMG
- Version: 5.5 G63 V8 BiTurbo AMG Auto 4WD Euro 6 (s/s) 5dr SpdS+7GT (563 bhp)
- Year: 2018
- Mileage: 49,521 miles
- Fuel: Petrol
- Body: SUV, 5 doors, 5 seats
- Engine: 5.5 litres, 563 bhp
- Gearbox: Automatic
- Drive: Four-wheel drive
- Colour: Black
- CO2: 322 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2018 Mercedes-Benz G Class AMG has covered 49,521 miles, around 2,500 fewer miles than is typical for its age. Priced at £64,995, it is advertised £14,969 below the AskCar estimate of £79,964. The AskCar estimate draws on 413 Mercedes-Benz G Class adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 136 days ago, and its asking price has since fallen by £5,000. The government's MOT record matches its advertised mileage. It is for sale at 911 Box in Keston. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 8 November 2026.
Price
Good value: £14,969 (18%) under the AskCar estimate of £79,964.
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 413 priced Mercedes-Benz G Class adverts across different ages and specifications, as of 8 November 2026.
Time on sale
This 2018 Mercedes-Benz G Class has been on sale for at least 136 days.
Price history
AskCar first saw this advert on 25 June 2026 at £69,995. Its asking price is now £64,995, £5,000 less. The latest price cut was seen on 31 October 2026.
Price changes recorded:
- 25 June 2026: £69,995
- 4 September 2026: £68,995
- 31 October 2026: £64,995
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 18 June 2027.
It has had 7 MOTs. The latest, on 19 June 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 49,383 miles, which matches the advertised 49,521 miles.
Advertised mileage is about 2,500 miles lower than the median mileage of a 2018 Mercedes-Benz G Class on AskCar.
Similar cars
5 other 2018 Mercedes-Benz G Class AMG 5.5 petrol automatic SUVs are for sale at UK dealers, from £61,909 to £499,995, as of 8 November 2026.
The 3 closest to this car in mileage:
- 2018 Mercedes-Benz G Class AMG, 5.5 petrol SUV, black. Mileage: 41,586 miles. Price: £74,985, £9,990 more than this car. Dealer: The Car Factory in Blackburn. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2018-c323c6f5172a
- 2018 Mercedes-Benz G Class AMG, 5.5 petrol SUV, black. Mileage: 60,500 miles. Price: £64,995, the same price as this car. Dealer: CSH Performance in Elland. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2018-3960191befe7
- 2018 Mercedes-Benz G Class AMG, 5.5 petrol SUV, black. Mileage: 37,910 miles. Price: £76,975, £11,980 more than this car. Dealer: The Car Co in Bury. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2018-b826d2b1e7fa
- The nearest: 2018 Mercedes-Benz G Class AMG, 5.5 petrol SUV, black, 26 miles from this car. Mileage: 71,000 miles. Price: £61,909, £3,086 less than this car. Dealer: R & W Motor Co (Gb) in Virginia Water. AskCar page: https://askcar.co.uk/car/mercedes-benz-g-class-2018-ecb4406fb578
Browse all Mercedes-Benz G Class cars for sale · 2018 Mercedes-Benz G Class price guide
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Photos
20 photos of this car are on its AskCar page.
As of 8 November 2026, AskCar lists 595,762 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.