2023 BMW M3

3.0 Competition Auto 5dr M

£65,990

Fair price: within 8% of the typical £65,684 for this model, age and mileage, drawing on 775 adverts of this make and model.

Overview

Make
BMW
Model
M3
Trim
COMPETITION
Version
3.0 Competition Auto 5dr M
Mileage
16,533 miles
Year
2023
Fuel type
Petrol
Engine
3.0 L
Gearbox
Automatic
Seats
5
CO2
233 g/km
Colour
Red
Doors
5
Engine badge
Competition

About this car

This 2023 BMW M3 Competition is advertised with 16,533 miles, approximately 5,500 below the typical mileage for its age. At £65,990, it is advertised £306 above our estimated market asking price of £65,684. To estimate its market asking price, we analyse UK dealer adverts for 775 BMW M3 cars across different ages and specifications. We first saw this car advertised 46 days ago. Its asking price has since fallen by £3,005. The seller is Group 1 Brighton BMW, based in Brighton.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price history

First seen on 5 September 2026, 46 days ago. Advert duration calculated on 21 October 2026. Net asking-price reduction: £3,005 from the first recorded £68,995. 5 price reductions recorded, the latest observed on 14 October 2026.

Recorded asking prices
Date observedAsking price
5 September 2026£68,995
9 September 2026£68,495
19 September 2026£67,990
23 September 2026£67,490
6 October 2026£66,890
14 October 2026£65,990
19 October 2026£65,990

Price and mileage comparison

Estimated market asking price: £65,684. The asking price is £306 above 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 775 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 5,500 miles lower than typical for a 2023 BMW M3.

MOT

MOT no details held by dvla.

105 other cars with the same year, trim, gearbox and fuel are for sale from £49,995 to £77,995.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£49,99537,000 miles
£50,49544,843 miles
£54,99554,000 miles
£54,99536,430 miles
£54,99547,461 miles

These cars have covered 4,742–54,000 miles, compared with 16,533 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

Group 1 Brighton BMW, Brighton. Across the dealer network: 145 branches, 8,684 cars for sale.

Dealer postcode: BN41 1YH.

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
10:00-16:00

Vehicle photos