2021 BMW 4 Series

2.0 420d MHT M Sport Auto Euro 6 (187 bhp)

£23,500

Fair price: within 8% of the typical £24,334 for this model, age and mileage, drawing on 1,756 adverts of this make and model.

Overview

Make: BMW
Model: 4 Series
Trim: M SPORT
Version: 2.0 420d MHT M Sport Auto Euro 6 (187 bhp)
Mileage: 43,782 miles
Year: 2021
Fuel type: Diesel Hybrid
Body type: Coupe
Engine: 2.0 L
Gearbox: Automatic
Power: 187 bhp
CO2: 127 g/km
Colour: White
Engine badge: 420d; MHT
Hybrid type: Mild hybrid
Emissions standard: Euro 6

About this car

The advertised mileage for this 2021 BMW 4 Series M Sport is 43,782 miles. Its asking price of £23,500 is £834 below our estimate of £24,334. The estimate uses 1,756 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 44 days ago. Its asking price has since fallen by £1,350. MOT records show an expiry date of 1 March 2027, and the latest recorded mileage is consistent with the advert. The seller is Sytner Leicester BMW, based in Leicester.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price history

First seen on 6 September 2026, 44 days ago. Advert duration calculated on 20 October 2026. Net asking-price reduction: £1,350 from the first recorded £24,850. 3 price reductions recorded, the latest observed on 6 October 2026.

Recorded asking prices
Date observed	Asking price
6 September 2026	£24,850
19 September 2026	£24,250
25 September 2026	£23,850
6 October 2026	£23,500
19 October 2026	£23,500

Price and mileage comparison

Estimated market asking price: £24,334. The asking price is £834 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 1,756 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 4 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 1 March 2027. 39,640 miles at the last test.

56 other cars with the same year, trim, gearbox and fuel are for sale from £16,995 to £29,940.

Other matching cars (up to five, cheapest first)
Asking price	Mileage
£16,995	101,850 miles
£17,900	97,000 miles
£18,900	93,379 miles
£18,935	65,079 miles
£18,990	95,385 miles

These cars have covered 13,800–101,850 miles, compared with 43,782 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 4 Series cars for sale · 2021 BMW 4 Series price guide

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Dealer

Sytner Leicester BMW, Leicester. Across the dealer network: 104 branches, 2,723 cars for sale.

Dealer postcode: LE19 1UY.