2021 BMW M3

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

£56,499

Fair price: within 8% of the typical £59,695 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) 4dr M (503 bhp)
Mileage
26,926 miles
Year
2021
Fuel type
Petrol
Body type
Saloon
Engine
3.0 L
Gearbox
Automatic
Power
503 bhp
Seats
5
CO2
229 g/km
Colour
Grey
Doors
4
Driven wheels
Four Wheel Drive
Gearbox version
Steptronic
Engine badge
BiTurbo
Emissions standard
Euro 6

About this car

This 2021 BMW M3 Competition is advertised with 26,926 miles on the clock. Its asking price of £56,499 is £3,196 below our estimate of £59,695. We use UK dealer asking prices, including 777 BMW M3 listings, and account for the car’s age, mileage and specification. The asking price is now £2,500 lower than when we first recorded the advert 146 days ago. That history is worth bearing in mind when speaking to the dealer. MOT records show an expiry date of 8 February 2027, and the latest recorded mileage is consistent with the advert. It is for sale at Sandles Cars in Kings Lynn.

Stock data from 20 October 2026.

How we estimate prices and check cars

Price history

First seen on 28 May 2026, 146 days ago. Advert duration calculated on 21 October 2026. Net asking-price reduction: £2,500 from the first recorded £58,999. 5 price reductions recorded, the latest observed on 14 October 2026.

Recorded asking prices
Date observedAsking price
28 May 2026£58,999
16 June 2026£58,499
15 July 2026£58,499
26 August 2026£57,999
9 September 2026£57,499
23 September 2026£56,999
14 October 2026£56,499
20 October 2026£56,499

Price and mileage comparison

Estimated market asking price: £59,695. The asking price is £3,196 below 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 1,900 miles higher than typical for a 2021 BMW M3.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 8 February 2027. 25,821 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
£47,99047,000 miles
£48,95018,500 miles

These cars have covered 2,800–79,965 miles, compared with 26,926 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

Sandles Cars, Kings Lynn. Across the dealer network: 218 cars for sale.

Dealer postcode: PE32 1DD.

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
09:00-17:00
Sunday
10:00-17:00

Vehicle photos