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: 15,611 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres, 328 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 195 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW 8 Series M Sport has covered 15,611 miles, around 2,300 fewer miles than is typical for its age. The dealer is asking £48,200, which is £7,035 above the AskCar estimate of £41,165. To work out the AskCar estimate, we analyse UK dealer adverts for 183 BMW 8 Series cars across different ages and specifications. We first recorded this advert 10 days ago, and its asking price has since fallen by £290. Its advertised mileage matches the government's MOT record. You can find this car at Vines of Gatwick BMW in Crawley. 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: £7,035 (17%) over the AskCar estimate of £41,165.

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 183 priced BMW 8 Series adverts across different ages and specifications, as of 7 November 2026.

A 2023 BMW 8 Series with the 3.0 petrol engine is typically advertised at £40,300: the median of the 14 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2023 BMW 8 Series has been on sale for at least 10 days.

Price history

AskCar first saw this advert on 28 October 2026 at £48,490. Its asking price is now £48,200, £290 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 28 October 2026: £48,490
• 4 November 2026: £48,200

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 6 January 2027.

It has had one MOT, on 23 December 2025, and passed.

Advisories at the latest test: offside front road wheel slightly distorted.

Mileage at that test: 11,380 miles, which matches the advertised 15,611 miles.

Advertised mileage is about 2,300 miles lower than the median mileage of a 2023 BMW 8 Series on AskCar.

Similar cars

1 other 2023 BMW 8 Series M Sport 3.0 petrol automatic convertible is for sale at UK dealers, as of 7 November 2026.

The closest to this car in mileage:

• 2023 BMW 8 Series M Sport, 3.0 petrol convertible, grey. Mileage: 23,128 miles. Price: £43,990, £4,210 less than this car. Dealer: Group 1 Southend BMW in Southend-on-Sea. AskCar page: https://askcar.co.uk/car/bmw-8-series-2023-a9a1410075e6