2023 BMW M3 3.0 Competition

Price: £58,000. Fair price: £1,447 (2%) under the AskCar estimate of £59,447, our expected asking price for this car from its model, age, mileage and specification, drawing on 750 priced BMW M3 adverts on AskCar as of 6 November 2026.

AskCar lists 808 used BMW M3 from 464 UK dealerships, as of 6 November 2026.

Overview

  • Make: BMW
  • Model: M3
  • Trim: Competition
  • Version: 3.0 Competition Auto 4dr M
  • Year: 2023
  • Mileage: 26,510 miles
  • Fuel: Petrol
  • Body: 4 doors
  • Engine: 3.0 litres
  • Gearbox: Automatic
  • Colour: Grey
  • CO2: 229 g/km

About this car

At 26,510 miles, this 2023 BMW M3 Competition has covered about 5,400 more miles than other 2023 BMW M3 cars. Its asking price of £58,000 is £1,447 below the AskCar estimate of £59,447. To work out the AskCar estimate, we analyse UK dealer adverts for 750 BMW M3 cars across different ages and specifications. This car was first seen in our listings data 51 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Sytner Tamworth BMW, based in Tamworth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,447 (2%) under the AskCar estimate of £59,447.

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 750 priced BMW M3 adverts across different ages and specifications, as of 6 November 2026.

A 2023 BMW M3 with the 3.0 petrol engine is typically advertised at £63,000: the median of the 113 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2023 BMW M3 has been on sale for at least 51 days.

Price history

AskCar first saw this advert on 16 September 2026 at £57,500. Its asking price is now £58,000, £500 more.

Price changes recorded:

  • 16 September 2026: £57,500
  • 26 September 2026: £59,500
  • 10 October 2026: £59,000
  • 22 October 2026: £58,000

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 7 July 2027.

It has had one MOT, on 8 July 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 21,955 miles, which matches the advertised 26,510 miles.

Advertised mileage is about 5,400 miles higher than the median mileage of a 2023 BMW M3 on AskCar.

Browse all BMW M3 cars for sale · 2023 BMW M3 price guide

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Photos

46 photos of this car are on its AskCar page.

As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.