2023 BMW M3 3.0 BiTurbo Competition

Overview

• Make: BMW
• Model: M3
• Trim: Competition
• Version: 3.0 BiTurbo Competition Steptronic 4WD Euro 6 (s/s) 5dr Touring M (503 bhp)
• Year: 2023
• Mileage: 17,500 miles
• Fuel: Petrol
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 232 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 17,500 miles, this 2023 BMW M3 Competition has covered about 3,600 fewer miles than other 2023 BMW M3 cars. The AskCar estimate for this car is £68,235. It is priced at £68,495, which is £260 above that estimate. The AskCar estimate uses UK dealer asking prices, including 753 BMW M3 adverts, and accounts for the car’s age, mileage and specification. It first appeared in our advert records today. The seller is Startin Group, based in Leamington Spa. 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: £260 (under 1%) over the AskCar estimate of £68,235.

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 753 priced BMW M3 adverts across different ages and specifications, as of 5 November 2026.

A 2023 BMW M3 with the 3.0 petrol engine is typically advertised at £63,400: the median of the 112 for sale on AskCar, as of 5 November 2026.

Time on sale

AskCar first saw this 2023 BMW M3 advertised today. About 4 in 10 of 2023 BMW M3 cars are gone from sale within a month of being advertised: 47 of the 120 first advertised between 8 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 5 November 2026 at £68,495. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 3,600 miles lower than the median mileage of a 2023 BMW M3 on AskCar.

Similar cars

31 other 2023 BMW M3 Competition 3.0 petrol automatic estates are for sale at UK dealers, from £56,949 to £77,995, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW M3 Competition, 3.0 petrol estate, grey. Mileage: 17,000 miles. Price: £67,480, £1,015 less than this car. Dealer: Auto100.Co.Uk in Sutton in Ashfield. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-6b8fdc0af8a5
• 2023 BMW M3 Competition, 3.0 petrol estate. Mileage: 17,000 miles. Price: £75,995, £7,500 more than this car. Dealer: A C G Motors in Manchester. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-077a8d552efa
• 2023 BMW M3 Competition, 3.0 petrol estate, black. Mileage: 18,766 miles. Price: £62,399, £6,096 less than this car. Dealer: cinch in Hook. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-2d0c0290c322