2023 BMW M3 3.0 Competition

Overview

• Make: BMW
• Model: M3
• Trim: Competition
• Version: 3.0 Competition Auto 4dr M
• Year: 2023
• Mileage: 21,040 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres
• Gearbox: Automatic
• Colour: Grey
• CO2: 230 g/km

About this car

The advertised mileage for this 2023 BMW M3 Competition is 21,040 miles. Its asking price of £57,299 is £1,467 below the AskCar estimate of £58,766. The AskCar estimate uses 752 UK dealer adverts for the BMW M3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 6 days ago. Its asking price has since fallen by £900. The government's MOT record matches its advertised mileage. You can find this car at cinch in Salisbury. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,467 (2%) under the AskCar estimate of £58,766.

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 752 priced BMW M3 adverts across different ages and specifications, as of 4 November 2026.

A 2023 BMW M3 with the 3.0 petrol engine is typically advertised at £64,000: the median of the 112 for sale on AskCar, as of 4 November 2026.

Time on sale

AskCar first saw this 2023 BMW M3 advertised 6 days ago. About 4 in 10 of 2023 BMW M3 cars are gone from sale within a month of being advertised: 47 of the 122 first advertised between 8 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 29 October 2026 at £58,199. Its asking price is now £57,299, £900 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 29 October 2026: £58,199
• 30 October 2026: £57,299

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 11 July 2027.

It has had one MOT, on 22 June 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 19,050 miles, which matches the advertised 21,040 miles.

Advertised mileage is about 200 miles lower than the median mileage of a 2023 BMW M3 on AskCar.

Similar cars

52 other 2023 BMW M3 Competition 3.0 petrol automatic saloons are for sale at UK dealers, from £51,990 to £74,995, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW M3 Competition, 3.0 petrol saloon, grey. Mileage: 21,000 miles. Price: £62,995, £5,696 more than this car. Dealer: Driven Motor Company in Glasgow. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-f88004068e6c
• 2023 BMW M3 Competition, 3.0 petrol saloon, black. Mileage: 21,140 miles. Price: £58,990, £1,691 more than this car. Dealer: Stratstone BMW Tunbridge Wells in Royal Tunbridge Wells. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-48321baad6c3
• 2023 BMW M3 Competition, 3.0 petrol saloon, blue. Mileage: 20,173 miles. Price: £56,995, £304 less than this car. Dealer: Brook Cars Company in Telford. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-7a74eef30c0f

• The nearest: 2023 BMW M3 Competition, 3.0 petrol saloon, grey, 17 miles from this car. Mileage: 54,000 miles. Price: £54,995, £2,304 less than this car. Dealer: V G Performance Cars in Andover. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-38320d603df1