2023 BMW M3 3.0 Competition

Overview

• Make: BMW
• Model: M3
• Trim: Competition
• Version: 3.0 Competition Auto 4dr M
• Year: 2023
• Mileage: 14,520 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres
• Gearbox: Automatic
• Colour: Grey
• CO2: 229 g/km

About this car

At 14,520 miles, this 2023 BMW M3 Competition has covered about 6,600 fewer miles than other 2023 BMW M3 cars. The dealer is asking £63,395, which is £2,596 above the AskCar estimate of £60,799. To work out the AskCar estimate, we analyse UK dealer adverts for 753 BMW M3 cars across different ages and specifications. We first recorded this advert 5 days ago, and its asking price has since fallen by £100. The government's MOT record matches its advertised mileage. It is advertised by Gibbons Automotive in Westbury. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,596 (4%) over the AskCar estimate of £60,799.

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 753 priced BMW M3 adverts across different ages and specifications, as of 5 November 2026.

A 2023 BMW M3 with the 3.0 petrol engine is typically advertised at £63,400: the median of the 112 for sale on AskCar, as of 5 November 2026.

Time on sale

AskCar first saw this 2023 BMW M3 advertised 5 days ago. About 4 in 10 of 2023 BMW M3 cars are gone from sale within a month of being advertised: 47 of the 120 first advertised between 8 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 31 October 2026 at £63,495. Its asking price is now £63,395, £100 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 31 October 2026: £63,495
• 5 November 2026: £63,395

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 9 June 2027.

It has had one MOT, on 10 June 2026, and passed.

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge tyre 2.5mm but worn to near bold on inner edge; offside rear tyre worn close to legal limit/worn on edge tyre 2.5mm but worn to near bold on inner edge; nearside front tyre worn close to legal limit/worn on edge tyre 2-3.5 mm but worn to near bold on both edges; and 1 more.

Mileage at that test: 12,998 miles, which matches the advertised 14,520 miles.

Advertised mileage is about 6,600 miles lower than the median mileage of a 2023 BMW M3 on AskCar.

Similar cars

54 other 2023 BMW M3 Competition 3.0 petrol automatic saloons are for sale at UK dealers, from £51,990 to £74,995, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW M3 Competition, 3.0 petrol saloon, grey. Mileage: 14,450 miles. Price: £61,990, £1,405 less than this car. Dealer: Parker Prestige in Richmond. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-44683d7fa778
• 2023 BMW M3 Competition, 3.0 petrol saloon, grey. Mileage: 14,175 miles. Price: £66,700, £3,305 more than this car. Dealer: John Clark MINI Tayside in Dundee. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-3bde03ebc9e3
• 2023 BMW M3 Competition, 3.0 petrol saloon, black. Mileage: 14,929 miles. Price: £58,990, £4,405 less than this car. Dealer: Savannah in Southend-on-Sea. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-0b135120728c

• The nearest: 2023 BMW M3 Competition, 3.0 petrol saloon, grey, 22 miles from this car. Mileage: 21,040 miles. Price: £57,299, £6,096 less than this car. Dealer: cinch in Salisbury. AskCar page: https://askcar.co.uk/car/bmw-m3-2023-ec5c7fbcf3a2