2021 BMW 4 Series 2.0 430i M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 430i M Sport Auto RWD Euro 6 (s/s) 2dr
• Year: 2021
• Mileage: 28,848 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 166 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 4 Series M Sport has covered 28,848 miles, around 15,200 fewer miles than is typical for its age. Its asking price of £27,799 is £1,504 above the AskCar estimate of £26,295. The AskCar estimate uses 1,833 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 32 days ago. Its asking price has since fallen by £1,000. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Hendy Ford Redhill, based in Redhill. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,504 (5%) over the AskCar estimate of £26,295.

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 1,833 priced BMW 4 Series adverts across different ages and specifications, as of 5 November 2026.

A 2021 BMW 4 Series with the 2.0 petrol engine is typically advertised at £24,000: the median of the 149 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2021 BMW 4 Series has been on sale for at least 32 days.

Price history

AskCar first saw this advert on 4 October 2026 at £28,799. Its asking price is now £27,799, £1,000 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 4 October 2026: £28,799
• 14 October 2026: £28,499
• 21 October 2026: £27,999
• 27 October 2026: £27,899
• 4 November 2026: £27,799

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 16 June 2027.

It has had 3 MOTs. The latest, on 27 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 27,638 miles, which matches the advertised 28,848 miles.

Advertised mileage is about 15,200 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 £33,950, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 4 Series M Sport, 2.0 petrol convertible, white. Mileage: 30,513 miles. Price: £24,995, £2,804 less than this car. Dealer: Nick Bonar Cars in Newtownabbey. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-aeea6fa26863
• 2021 BMW 4 Series M Sport, 2.0 petrol convertible, blue. Mileage: 24,899 miles. Price: £26,895, £904 less than this car. Dealer: Century Cars in Turners Hill. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-7b8b9a6a1c14
• 2021 BMW 4 Series M Sport, 2.0 petrol convertible, green. Mileage: 33,000 miles. Price: £25,990, £1,809 less than this car. Dealer: Northover Cars in Whitstable. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-73ad6e80af4f