2023 BMW M3

3.0 Competition Auto 4dr M

£59,500

Fair price: within 8% of the typical £60,145 for this model, age and mileage, drawing on 777 adverts of this make and model.

Overview

Make
BMW
Model
M3
Trim
COMPETITION
Version
3.0 Competition Auto 4dr M
Mileage
21,040 miles
Year
2023
Fuel type
Petrol
Body type
Saloon
Engine
3.0 L
Gearbox
Automatic
CO2
230 g/km
Colour
Grey
Doors
4
Engine badge
Competition

About this car

This 2023 BMW M3 Competition has covered 21,040 miles. The dealer is asking £59,500, which is £645 below our market estimate of £60,145. We use UK dealer asking prices, including 777 BMW M3 listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 18 days ago, the asking price has dropped by £600. MOT records show an expiry date of 11 July 2027, and the latest recorded mileage is consistent with the advert. The seller is Marshall BMW Salisbury, based in Salisbury.

Stock data from 20 October 2026.

How we estimate prices and check cars

Price history

First seen on 3 October 2026, 18 days ago. Advert duration calculated on 21 October 2026. Net asking-price reduction: £600 from the first recorded £60,100. 1 price reduction recorded, the latest observed on 9 October 2026.

Recorded asking prices
Date observedAsking price
3 October 2026£60,100
9 October 2026£59,300
16 October 2026£59,500
20 October 2026£59,500

Price and mileage comparison

Estimated market asking price: £60,145. The asking price is £645 below this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 777 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 600 miles lower than typical for a 2023 BMW M3.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 11 July 2027. 19,050 miles at the last test.

104 other cars with the same year, trim, gearbox and fuel are for sale from £54,995 to £77,995.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£54,99554,000 miles
£54,99536,430 miles
£54,99547,461 miles
£55,00030,856 miles
£55,45048,499 miles

These cars have covered 4,742–54,000 miles, compared with 21,040 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

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

Similar cars for less

Dealer

Marshall BMW Salisbury, Salisbury. Across the dealer network: 129 branches, 4,150 cars for sale.

Dealer postcode: SP1 3YU.

Dealer opening hours

Monday
08:30-18:00
Tuesday
08:30-18:00
Wednesday
08:30-18:00
Thursday
08:30-18:00
Friday
08:30-18:00
Saturday
08:30-17:00
Sunday
10:30-16:30

Vehicle photos