2021 BMW 4 Series 2.0 430i M Sport
Price: £33,950. Above the going rate: £3,445 (11%) over the AskCar estimate of £30,505, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,814 priced BMW 4 Series adverts on AskCar as of 4 November 2026.
AskCar lists 1,865 used BMW 4 Series from 1,070 UK dealerships, as of 4 November 2026.
Overview
- Make: BMW
- Model: 4 Series
- Trim: M Sport
- Version: 2.0 430i M Sport Auto RWD Euro 6 (s/s) 2dr (242 bhp)
- Year: 2021
- Mileage: 12,250 miles
- Fuel: Petrol
- Body: Convertible, 2 doors, 4 seats
- Engine: 2.0 litres, 242 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Green
- CO2: 166 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 BMW 4 Series M Sport has covered 12,250 miles, around 31,900 fewer miles than is typical for its age. Priced at £33,950, it is advertised £3,445 above the AskCar estimate of £30,505. The AskCar estimate uses 1,814 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 92 days ago. It is for sale at Kams Cars in Borehamwood. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 4 November 2026.
Price
Above the going rate: £3,445 (11%) over the AskCar estimate of £30,505.
The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.
It draws on 1,814 priced BMW 4 Series adverts across different ages and specifications, as of 4 November 2026.
A 2021 BMW 4 Series with the 2.0 petrol engine is typically advertised at £24,000: the median of the 144 for sale on AskCar, as of 4 November 2026.
Time on sale
This 2021 BMW 4 Series has been on sale for at least 92 days.
Price history
AskCar first saw this advert on 4 August 2026 at £33,950. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 31,900 miles lower than the median mileage of a 2021 BMW 4 Series on AskCar.
Similar cars
26 other 2021 BMW 4 Series M Sport 2.0 petrol automatic convertibles are for sale at UK dealers, from £18,990 to £29,300, as of 4 November 2026.
The 3 closest to this car in mileage:
- 2021 BMW 4 Series M Sport, 2.0 petrol convertible, white. Mileage: 12,820 miles. Price: £27,000, £6,950 less than this car. Dealer: Hedin Automotive Enfield BMW in Enfield. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-5519f689856d
- 2021 BMW 4 Series M Sport, 2.0 petrol convertible, grey. Mileage: 17,141 miles. Price: £29,300, £4,650 less than this car. Dealer: Vertu BMW Exeter in Exeter. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-d184ad7440ea
- 2021 BMW 4 Series M Sport, 2.0 petrol convertible, black. Mileage: 22,399 miles. Price: £27,195, £6,755 less than this car. Dealer: John Clark BMW Tayside in Dundee. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-9751e81829b1
- The nearest: 2021 BMW 4 Series M Sport, 2.0 petrol convertible, white, 6 miles from this car. Mileage: 37,652 miles. Price: £22,550, £11,400 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-51fe39d2b593
Browse all BMW 4 Series cars for sale · 2021 BMW 4 Series price guide
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Photos
59 photos of this car are on its AskCar page.
As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.