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: 20,000 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 20,000 miles on the clock. Priced at £64,995, it is advertised £2,387 below the AskCar estimate of £67,382. The AskCar estimate uses UK dealer asking prices, including 756 BMW M3 adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data 3 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Group 1 Hailsham BMW, based in Hailsham. 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: £2,387 (3%) under the AskCar estimate of £67,382.

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

AskCar first saw this 2023 BMW M3 advertised 3 days ago. About 4 in 10 of 2023 BMW M3 cars are gone from sale within a month of being advertised: 45 of the 115 first advertised between 8 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 30 October 2026 at £64,995. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 23 December 2026.

It has had one MOT, on 24 December 2025, and passed.

There were no advisories at the latest test.

Mileage at that test: 12,279 miles, which matches the advertised 20,000 miles.

Advertised mileage is about 1,000 miles lower than the median mileage of a 2023 BMW M3 on AskCar.

Similar cars

34 other 2023 BMW M3 Competition 3.0 petrol automatic estates are for sale at UK dealers, from £56,949 to £77,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW M3 Competition, 3.0 petrol estate, green. Mileage: 20,000 miles. Price: £64,980, the same price as this car. Dealer: Auto100.Co.Uk in Sutton in Ashfield. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-78d87f42d0e4
• 2023 BMW M3 Competition, 3.0 petrol estate, black. Mileage: 18,766 miles. Price: £62,399, £2,596 less than this car. Dealer: cinch in Hook. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-2d0c0290c322
• 2023 BMW M3 Competition, 3.0 petrol estate, black. Mileage: 21,488 miles. Price: £64,950, the same price as this car. Dealer: Magma Cars in Salfords. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-bce6dba6aa11

• The nearest: 2023 BMW M3 Competition, 3.0 petrol estate, black, 24 miles from this car. Mileage: 16,415 miles. Price: £73,995, £9,000 more than this car. Dealer: Figaro Motors in Crawley. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-d45dfbd99d35