2021 BMW 3 Series

3.0 M340i MHT Auto 4WD Euro 6 (s/s) 4dr (369 bhp)

£27,990

Good value: £2,680 under the typical £30,670 for this model, age and mileage, drawing on 6,811 adverts of this make and model.

Overview

Make
BMW
Model
3 Series
Version
3.0 M340i MHT Auto 4WD Euro 6 (s/s) 4dr (369 bhp)
Mileage
52,810 miles
Year
2021
Fuel type
Petrol Hybrid
Body type
Saloon
Engine
3.0 L
Gearbox
Automatic
Power
369 bhp
Seats
5
CO2
176 g/km
Colour
Blue
Doors
4
Driven wheels
Four Wheel Drive
Engine badge
M340i; MHT
Hybrid type
Mild hybrid
Emissions standard
Euro 6

About this car

This 2021 BMW 3 Series is advertised with 52,810 miles on the clock. The dealer is asking £27,990, which is £2,680 below our market estimate of £30,670. Our estimate draws on 6,811 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records 31 days ago. MOT records show an expiry date of 19 March 2027, and the latest recorded mileage is consistent with the advert. The seller is Trade Right Cars Cardiff, based in Cardiff.

Stock data from 20 October 2026.

How we estimate prices and check cars

Price history

First seen on 20 September 2026, 31 days ago. Advert duration calculated on 21 October 2026.

Recorded asking prices
Date observedAsking price
20 September 2026£27,990
20 October 2026£27,990

Price and mileage comparison

Estimated market asking price: £30,670. The asking price is £2,680 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 6,811 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 1,700 miles lower than typical for a 2021 BMW 3 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 19 March 2027. 48,890 miles at the last test.

57 other cars with the same year, trim, gearbox and fuel are for sale from £25,475 to £45,000.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£25,47589,162 miles
£25,99584,000 miles
£26,49573,000 miles
£26,75037,000 miles
£26,99576,150 miles

These cars have covered 6,593–89,162 miles, compared with 52,810 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 3 Series cars for sale · 2021 BMW 3 Series price guide

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Dealer

Trade Right Cars Cardiff, Cardiff. Across the dealer network: 20 cars for sale.

Dealer postcode: CF5 5TG.

Dealer opening hours

Monday
09:00-17:00
Tuesday
09:00-17:00
Wednesday
09:00-17:00
Thursday
09:00-17:00
Friday
09:00-17:00
Saturday
09:00-17:00
Sunday
11:00-16:00

Vehicle photos