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: 30,000 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

This 2023 BMW M3 Competition is advertised with 30,000 miles, approximately 8,800 above the typical mileage for its age. Its asking price of £69,995 is £5,772 above the AskCar estimate of £64,223. To work out the AskCar estimate, we analyse UK dealer adverts for 752 BMW M3 cars across different ages and specifications. Since we first spotted the advert 85 days ago, the asking price has dropped by £5,000. Its advertised mileage matches the government's MOT record. The seller is Harris Automotive, based in Bath and North East Somerset. 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

Above the going rate: £5,772 (8%) over the AskCar estimate of £64,223.

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

This 2023 BMW M3 has been on sale for at least 85 days.

Price history

AskCar first saw this advert on 11 August 2026 at £74,995. Its asking price is now £69,995, £5,000 less. The latest price cut was seen on 23 October 2026.

Price changes recorded:

• 11 August 2026: £74,995
• 23 October 2026: £69,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 17 February 2027.

It has had one MOT, on 18 February 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 28,181 miles, which matches the advertised 30,000 miles.

Advertised mileage is about 8,800 miles higher 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 4 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW M3 Competition, 3.0 petrol estate, green. Mileage: 28,654 miles. Price: £67,995, £2,000 less than this car. Dealer: Motorvana in Manchester. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-e71389a59f50
• 2023 BMW M3 Competition, 3.0 petrol estate, black. Mileage: 31,646 miles. Price: £69,980, the same price as this car. Dealer: Phantom Motor Company in Hindley Green. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-1bb5642a43e9
• 2023 BMW M3 Competition, 3.0 petrol estate, green. Mileage: 32,000 miles. Price: £69,999, the same price as this car. Dealer: Autohaus Birmingham in Birmingham. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-089775422a7c

• The nearest: 2023 BMW M3 Competition, 3.0 petrol estate, grey, 32 miles from this car. Mileage: 33,320 miles. Price: £58,888, £11,107 less than this car. Dealer: Dick Lovett Porsche Centre Swindon in Swindon. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-082150e8cd04