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) 4dr M (503 bhp)
• Year: 2023
• Mileage: 25,000 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 229 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 25,000 miles, this 2023 BMW M3 Competition has covered about 4,000 more miles than other 2023 BMW M3 cars. The AskCar estimate for this car is £62,660. It is priced at £63,000, which is £340 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 756 BMW M3 cars across different ages and specifications. We first saw this car advertised 95 days ago. Its asking price has since fallen by £1,000. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Brooklyns in Broxbourne. 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: £340 (under 1%) over the AskCar estimate of £62,660.

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 95 days.

Price history

AskCar first saw this advert on 30 July 2026 at £64,000. Its asking price is now £63,000, £1,000 less. The latest price cut was seen on 4 August 2026.

Price changes recorded:

• 30 July 2026: £64,000
• 4 August 2026: £63,000

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 15 January 2027.

It has had one MOT, on 14 January 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 22,885 miles, which matches the advertised 25,000 miles.

Advertised mileage is about 4,000 miles higher 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: 25,000 miles. Price: £59,995, £3,005 less than this car. Dealer: Drive Time Specialist Cars in West Bromwich. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-e02001b689b3
• 2023 BMW M3 Competition, 3.0 petrol saloon, grey. Mileage: 25,002 miles. Price: £62,900, £100 less than this car. Dealer: Berry Heathrow in Heathrow. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-84023426619b
• 2023 BMW M3 Competition, 3.0 petrol saloon, white. Mileage: 24,000 miles. Price: £64,995, £1,995 more than this car. Dealer: Vollgas Automotive in Burnley. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-acd8a3671a5f

• The nearest: 2023 BMW M3 Competition, 3.0 petrol saloon, 9 miles from this car. Mileage: 23,000 miles. Price: £66,495, £3,495 more than this car. Dealer: Go Specialists Car Sales in Hatfield. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-293b0db6a34c