2023 BMW M3 Competition

Overview

• Make: BMW
• Model: M3
• Trim: Competition
• Version: Competition Auto 4dr (503 bhp)
• Year: 2023
• Mileage: 20,000 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 503 bhp
• Gearbox: Automatic
• Colour: Black
• CO2: 369 g/km

About this car

This 2023 BMW M3 Competition has covered 20,000 miles. Priced at £67,888, it is advertised £5,902 above the AskCar estimate of £61,986. The AskCar estimate uses 756 UK dealer adverts for the BMW M3, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 58 days ago. The seller is Penny Hill Motors, based in Bagshot. 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

Above the going rate: £5,902 (9%) over the AskCar estimate of £61,986.

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.

Time on sale

This 2023 BMW M3 has been on sale for at least 58 days.

Price history

AskCar first saw this advert on 5 September 2026 at £67,888. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 1,000 miles lower than the median mileage of a 2023 BMW M3 on AskCar.