2023 BMW 8 Series Gran Coupe 3.0 840i M Sport

Overview

• Make: BMW
• Model: 8 Series Gran Coupe
• Trim: M Sport
• Version: 3.0 840i M Sport Auto RWD Euro 6 4dr (328 bhp)
• Year: 2023
• Mileage: 41,967 miles
• Fuel: Petrol
• Body: Coupe, 4 doors, 5 seats
• Engine: 3.0 litres, 328 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 194 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW 8 Series Gran Coupe M Sport is advertised with 41,967 miles, approximately 15,800 above the typical mileage for its age. The AskCar estimate for this car is £34,758. It is priced at £39,000, which is £4,242 above that estimate. The AskCar estimate draws on 120 BMW 8 Series Gran Coupe adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 38 days ago. Its asking price has since fallen by £1,000. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sytner High Wycombe BMW, based in High Wycombe. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £4,242 (12%) over the AskCar estimate of £34,758.

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 120 priced BMW 8 Series Gran Coupe adverts across different ages and specifications, as of 8 November 2026.

A 2023 BMW 8 Series Gran Coupe with the 3.0 petrol engine is typically advertised at £37,800: the median of the 22 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2023 BMW 8 Series Gran Coupe has been on sale for at least 38 days.

Price history

AskCar first saw this advert on 1 October 2026 at £40,000. Its asking price is now £39,000, £1,000 less. The latest price cut was seen on 2 November 2026.

Price changes recorded:

• 1 October 2026: £40,000
• 27 October 2026: £39,500
• 2 November 2026: £39,000

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 29 September 2027.

It has had one MOT, on 29 September 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 41,966 miles, which matches the advertised 41,967 miles.

Advertised mileage is about 15,800 miles higher than the median mileage of a 2023 BMW 8 Series Gran Coupe on AskCar.

Similar cars

16 other 2023 BMW 8 Series Gran Coupe M Sport 3.0 petrol automatic coupes are for sale at UK dealers, from £34,495 to £45,000, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW 8 Series Gran Coupe M Sport, 3.0 petrol coupe, grey. Mileage: 35,966 miles. Price: £34,495, £4,505 less than this car. Dealer: Vines of Gatwick BMW in Crawley. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2023-d9ff20b6943d
• 2023 BMW 8 Series Gran Coupe M Sport, 3.0 petrol coupe, grey. Mileage: 34,844 miles. Price: £37,333, £1,667 less than this car. Dealer: Stratstone Bmw Hull in Kingston upon Hull. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2023-60162e049f5d
• 2023 BMW 8 Series Gran Coupe M Sport, 3.0 petrol coupe, grey. Mileage: 34,500 miles. Price: £38,980, the same price as this car. Dealer: Tier One Automotive in Kings Langley. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2023-a71a9b394bc1

• The nearest: 2023 BMW 8 Series Gran Coupe M Sport, 3.0 petrol coupe, green, under a mile from this car. Mileage: 26,450 miles. Price: £38,000, £1,000 less than this car. Dealer: Sytner High Wycombe BMW in High Wycombe. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2023-a136a1e20711