2023 BMW M3 3.0 BiTurbo Competition

Price: £64,650. Fair price: £908 (1%) over the AskCar estimate of £63,742, our expected asking price for this car from its model, age, mileage and specification, drawing on 756 priced BMW M3 adverts on AskCar as of 2 November 2026.

AskCar lists 811 used BMW M3 from 475 UK dealerships, as of 2 November 2026.

Overview

  • Make: BMW
  • Model: M3
  • Trim: Competition
  • Version: 3.0 BiTurbo Competition Steptronic RWD Euro 6 (s/s) 4dr (503 bhp)
  • Year: 2023
  • Mileage: 7,900 miles
  • Fuel: Petrol
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 3.0 litres, 503 bhp
  • Gearbox: Automatic (Steptronic)
  • Drive: Rear-wheel drive
  • Colour: Grey
  • CO2: 223 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 7,900 miles on the clock, this 2023 BMW M3 Competition has done roughly 13,100 fewer miles than a typical 2023 BMW M3. The AskCar estimate for this car is £63,742. It is priced at £64,650, which is £908 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 756 BMW M3 cars across different ages and specifications. The asking price is now £3,300 lower than when we first recorded the advert 138 days ago. It is for sale at Boss Motor Company in Chesham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £908 (1%) over the AskCar estimate of £63,742.

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 756 priced BMW M3 adverts across different ages and specifications, as of 2 November 2026.

A 2023 BMW M3 with the 3.0 petrol engine is typically advertised at £64,300: the median of the 115 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2023 BMW M3 has been on sale for at least 138 days.

Price history

AskCar first saw this advert on 17 June 2026 at £67,950. Its asking price is now £64,650, £3,300 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

  • 17 June 2026: £67,950
  • 10 July 2026: £67,310
  • 22 July 2026: £66,940
  • 29 August 2026: £66,350
  • 29 September 2026: £64,950
  • 27 October 2026: £64,650

Mileage and MOT

Advertised mileage is about 13,100 miles lower than the median mileage of a 2023 BMW M3 on AskCar.

Similar cars

51 other 2023 BMW M3 Competition 3.0 petrol automatic saloons are for sale at UK dealers, from £54,995 to £74,995, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2023 BMW M3 Competition, 3.0 petrol saloon, grey. Mileage: 7,500 miles. Price: £69,995, £5,345 more than this car. Dealer: Shaks Specialist Cars in Huddersfield. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-aff31b765e36
  • 2023 BMW M3 Competition, 3.0 petrol saloon, blue. Mileage: 6,800 miles. Price: £73,995, £9,345 more than this car. Dealer: Automotive Addiction in Telford. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-68c6aa226868
  • 2023 BMW M3 Competition, 3.0 petrol saloon, grey. Mileage: 9,150 miles. Price: £63,995, £655 less than this car. Dealer: Sharman Group in Manchester. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-1c9f24da60f3
  • The nearest: 2023 BMW M3 Competition, 3.0 petrol saloon, black, 10 miles from this car. Mileage: 23,000 miles. Price: £59,999, £4,651 less than this car. Dealer: Harentor Cars in St Albans. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-89e21a0cbc18

Browse all BMW M3 cars for sale · 2023 BMW M3 price guide

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Photos

47 photos of this car are on its AskCar page.

As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.