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: 30,879 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

At 30,879 miles, this 2023 BMW 8 Series Gran Coupe M Sport has covered about 4,700 more miles than other 2023 BMW 8 Series Gran Coupe cars. The dealer is asking £37,645, which is £820 above the AskCar estimate of £36,825. To work out the AskCar estimate, we analyse UK dealer adverts for 120 BMW 8 Series Gran Coupe cars across different ages and specifications. Since we first spotted the advert 22 days ago, the asking price has dropped by £330. The seller is Group 1 Borehamwood BMW, based in Borehamwood. 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

Fair price: £820 (2%) over the AskCar estimate of £36,825.

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 22 days.

Price history

AskCar first saw this advert on 17 October 2026 at £37,975. Its asking price is now £37,645, £330 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 17 October 2026: £37,975
• 29 October 2026: £37,745
• 3 November 2026: £37,645

Mileage and MOT

Advertised mileage is about 4,700 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, black. Mileage: 28,785 miles. Price: £36,995, £650 less than this car. Dealer: Group 1 Worthing BMW in Worthing. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2023-af9ee9875f4f
• 2023 BMW 8 Series Gran Coupe M Sport, 3.0 petrol coupe, grey. Mileage: 34,500 miles. Price: £38,980, £1,335 more than this car. Dealer: Tier One Automotive in Kings Langley. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2023-a71a9b394bc1
• 2023 BMW 8 Series Gran Coupe M Sport, 3.0 petrol coupe, grey. Mileage: 34,844 miles. Price: £37,333, £312 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