2021 BMW M3

3.0 BiTurbo Competition Steptronic Euro 6 (s/s) 4dr (503 bhp)

£51,995

Fair price: within 8% of the typical £48,168 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 BiTurbo Competition Steptronic Euro 6 (s/s) 4dr (503 bhp)
Mileage
49,274 miles
Year
2021
Fuel type
Petrol
Body type
Saloon
Engine
3.0 L
Gearbox
Automatic
Power
503 bhp
Seats
5
CO2
231 g/km
Colour
Blue
Doors
4
Gearbox version
Steptronic
Engine badge
BiTurbo
Emissions standard
Euro 6

About this car

This 2021 BMW M3 Competition has covered 49,274 miles, around 24,300 more than typical for its age. Our estimated market asking price is £48,168. This car is advertised at £51,995, which is £3,827 above that figure. We use UK dealer asking prices, including 775 BMW M3 listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 43 days ago, the asking price has dropped by £395. MOT records show an expiry date of 2 July 2027, and the latest recorded mileage is consistent with the advert. It is for sale at Silsoe Prestige Motors in Bedford.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price history

First seen on 8 September 2026, 43 days ago. Advert duration calculated on 21 October 2026. Net asking-price reduction: £395 from the first recorded £52,390. 1 price reduction recorded, the latest observed on 29 September 2026.

Recorded asking prices
Date observedAsking price
8 September 2026£52,390
29 September 2026£51,995
19 October 2026£51,995

Price and mileage comparison

Estimated market asking price: £48,168. The asking price is £3,827 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 24,300 miles higher than typical for a 2021 BMW M3.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 2 July 2027. 46,914 miles at the last test.

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 priceMileage
£42,98979,965 miles
£44,99522,000 miles
£47,75050,000 miles
£48,95018,500 miles
£48,99047,000 miles

These cars have covered 2,800–79,965 miles, compared with 49,274 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

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Dealer

Silsoe Prestige Motors, Bedford. Across the dealer network: 99 cars for sale.

Dealer postcode: MK45 4QR.

Dealer opening hours

Monday
09:30-18:00
Tuesday
09:30-18:00
Wednesday
09:30-18:00
Thursday
09:30-18:00
Friday
09:30-18:00
Saturday
09:30-18:00
Sunday
10:45-16:00

Vehicle photos