2021 BMW M3

3.0 BiTurbo Competition Steptronic 4WD Euro 6 (s/s) 5dr Touring M (503 bhp)

£63,995

Above the going rate: £5,332 over the typical £58,663 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 BiTurbo Competition Steptronic 4WD Euro 6 (s/s) 5dr Touring M (503 bhp)
Mileage: 35,340 miles
Year: 2021
Fuel type: Petrol
Body type: Estate
Engine: 3.0 L
Gearbox: Automatic
Power: 503 bhp
Seats: 5
CO2: 232 g/km
Colour: Grey
Doors: 5
Driven wheels: Four Wheel Drive
Gearbox version: Steptronic
Engine badge: BiTurbo
Emissions standard: Euro 6

About this car

With 35,340 miles on the clock, this 2021 BMW M3 Competition has done roughly 10,300 more miles than a typical 2021 BMW M3. Its asking price of £63,995 is £5,332 above our estimate of £58,663. To estimate its market asking price, we analyse UK dealer adverts for 777 BMW M3 cars across different ages and specifications. We have tracked this advert for 71 days. It is for sale at Autogalleria Harpenden in St Albans.

Stock data from 20 October 2026.

How we estimate prices and check cars

Price history

First seen on 11 August 2026, 71 days ago. Advert duration calculated on 21 October 2026.

Recorded asking prices
Date observed	Asking price
11 August 2026	£63,995
20 October 2026	£63,995

Price and mileage comparison

Estimated market asking price: £58,663. The asking price is £5,332 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 777 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 10,300 miles higher than typical for a 2021 BMW M3.

41 other cars with the same year, trim, gearbox and fuel are for sale from £42,989 to £78,999.

Other matching cars (up to five, cheapest first)
Asking price	Mileage
£42,989	79,965 miles
£44,995	22,000 miles
£47,750	50,000 miles
£47,990	47,000 miles
£48,950	18,500 miles

These cars have covered 2,800–79,965 miles, compared with 35,340 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 · 2021 BMW M3 price guide

Similar cars for less

Dealer

Autogalleria Harpenden, St Albans. Across the dealer network: 40 cars for sale.

Dealer postcode: AL5 4US.