2023 BMW 8 Series 3.0 840i M Sport

Overview

• Make: BMW
• Model: 8 Series
• Trim: M Sport
• Version: 3.0 840i M Sport Steptronic RWD Euro 6 (s/s) 2dr (328 bhp)
• Year: 2023
• Mileage: 17,865 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 3.0 litres, 328 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 191 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW 8 Series M Sport has covered 17,865 miles. Its asking price of £38,700 is £2,158 below the AskCar estimate of £40,858. To work out the AskCar estimate, we analyse UK dealer adverts for 186 BMW 8 Series cars across different ages and specifications. We first recorded this advert 20 days ago, and its asking price has since fallen by £300. You can find this car at Saxtons.co.uk in Chelmsford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,158 (5%) under the AskCar estimate of £40,858.

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 186 priced BMW 8 Series adverts across different ages and specifications, as of 5 November 2026.

A 2023 BMW 8 Series with the 3.0 petrol engine is typically advertised at £40,300: the median of the 12 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2023 BMW 8 Series has been on sale for at least 20 days.

Price history

AskCar first saw this advert on 16 October 2026 at £39,000. Its asking price is now £38,700, £300 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 16 October 2026: £39,000
• 27 October 2026: £38,850
• 3 November 2026: £38,700

Similar cars

8 other 2023 BMW 8 Series M Sport 3.0 petrol automatic coupes are for sale at UK dealers, from £35,190 to £42,898, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW 8 Series M Sport, 3.0 petrol coupe, black. Mileage: 20,221 miles. Price: £37,421, £1,279 less than this car. Dealer: BMW Park Lane in City of Westminster. AskCar page: https://askcar.co.uk/car/bmw-8-series-2023-19625c19ec9a
• 2023 BMW 8 Series M Sport, 3.0 petrol coupe, blue. Mileage: 13,030 miles. Price: £42,099, £3,399 more than this car. Dealer: cinch in Scunthorpe. AskCar page: https://askcar.co.uk/car/bmw-8-series-2023-746da0dd154a
• 2023 BMW 8 Series M Sport, 3.0 petrol coupe, grey. Mileage: 23,966 miles. Price: £39,900, £1,200 more than this car. Dealer: Berry Heathrow in Heathrow. AskCar page: https://askcar.co.uk/car/bmw-8-series-2023-d829169312ee

• The nearest: 2023 BMW 8 Series M Sport, 3.0 petrol coupe, black, 30 miles from this car. Mileage: 37,429 miles. Price: £35,190, £3,510 less than this car. Dealer: Stratstone BMW Maidstone in Maidstone. AskCar page: https://askcar.co.uk/car/bmw-8-series-2023-4e1015f962ce