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
• CO2: 224 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 15,672 miles on the clock, this 2023 BMW M3 Competition has done roughly 5,300 fewer miles than a typical 2023 BMW M3. The dealer is asking £55,950, which is £4,801 below the AskCar estimate of £60,751. To work out the AskCar estimate, we analyse UK dealer adverts for 756 BMW M3 cars across different ages and specifications. This car was first seen in our listings data 13 days ago. We checked its advertised mileage against the government's MOT record, and they match. 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 13 days.

Price history

AskCar first saw this advert on 20 October 2026 at £55,950. 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 21 March 2027.

It has had one MOT, on 12 March 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 12,974 miles, which matches the advertised 15,672 miles.

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-b4d4951715ea
• 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