2021 BMW M3 3.0 Competition
Price: £72,995. Above the going rate: £9,865 (15%) over the AskCar estimate of £63,130, our expected asking price for this car from its model, age, mileage and specification, drawing on 752 priced BMW M3 adverts on AskCar as of 11 November 2026.
AskCar lists 807 used BMW M3 from 474 UK dealerships, as of 11 November 2026.
Overview
- Make: BMW
- Model: M3
- Trim: Competition
- Version: 3.0 Competition Auto Euro 6 (502 bhp)
- Year: 2021
- Mileage: 14,800 miles
- Fuel: Petrol
- Body: 5 seats
- Engine: 3.0 litres, 502 bhp
- Gearbox: Automatic
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 BMW M3 Competition is advertised with 14,800 miles, approximately 12,100 below the typical mileage for its age. Priced at £72,995, it is advertised £9,865 above the AskCar estimate of £63,130. The AskCar estimate uses 752 UK dealer adverts for the BMW M3, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert today. The seller is Horizon Prestige, based in Dunstable. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 11 November 2026.
Horizon Prestige is rated 4.2 out of 5 on Google.
Price
Above the going rate: £9,865 (15%) over the AskCar estimate of £63,130.
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 752 priced BMW M3 adverts across different ages and specifications, as of 11 November 2026.
A 2021 BMW M3 with the 3.0 petrol engine is typically advertised at £53,500: the median of the 42 for sale on AskCar, as of 11 November 2026.
Time on sale
AskCar first saw this 2021 BMW M3 advertised today.
Price history
AskCar first saw this advert on 11 November 2026 at £72,995. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 12,100 miles lower than the median mileage of a 2021 BMW M3 on AskCar.
Browse all BMW M3 cars for sale · 2021 BMW M3 price guide
More like this
As of 11 November 2026, AskCar lists 593,449 cars and vans from 12,847 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.