2023 BMW M3 3.0 BiTurbo Competition

Overview

• Make: BMW
• Model: M3
• Trim: Competition
• Version: 3.0 BiTurbo Competition Steptronic Euro 6 (s/s) 4dr (503 bhp)
• Year: 2023
• Mileage: 15,672 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Colour: Black
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW M3 Competition is advertised with 15,672 miles, approximately 5,300 below the typical mileage for its age. Its asking price of £55,950 is £4,801 below the AskCar estimate of £60,751. The AskCar estimate uses UK dealer asking prices, including 756 BMW M3 adverts, and accounts for the car’s age, mileage and specification. We first recorded this car for sale 12 days ago. The seller is Lloyd Cockermouth BMW, based in Cockermouth. 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: £4,801 (7%) under the AskCar estimate of £60,751.

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 12 days.

Price history

AskCar first saw this advert on 21 October 2026 at £55,950. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 5,300 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, black. Mileage: 15,672 miles. Price: £55,950, the same price as this car. Dealer: Lloyd Cockermouth BMW in Cockermouth. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-57e957b4c4dd
• 2023 BMW M3 Competition, 3.0 petrol saloon, blue. Mileage: 16,000 miles. Price: £67,995, £12,045 more than this car. Dealer: Sharman Group in Manchester. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-f4d2c8166d0a
• 2023 BMW M3 Competition, 3.0 petrol saloon, blue. Mileage: 15,284 miles. Price: £61,795, £5,845 more than this car. Dealer: Group 1 Ipswich BMW in Ipswich. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-b4614c967858