2021 BMW 4 Series 2.0 420i M Sport
Price: £24,500. Fair price: £1,057 (4%) over the AskCar estimate of £23,443, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,833 priced BMW 4 Series adverts on AskCar as of 5 November 2026.
AskCar lists 1,879 used BMW 4 Series from 1,081 UK dealerships, as of 5 November 2026.
Overview
- Make: BMW
- Model: 4 Series
- Trim: M Sport
- Version: 2.0 420i M Sport Auto RWD Euro 6 (s/s) 2dr (181 bhp)
- Year: 2021
- Mileage: 46,500 miles
- Fuel: Petrol
- Body: Coupe, 2 doors, 4 seats
- Engine: 2.0 litres, 181 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: White
- CO2: 151 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 BMW 4 Series M Sport has covered 46,500 miles, around 2,400 more miles than is typical for its age. Its asking price of £24,500 is £1,057 above the AskCar estimate of £23,443. The AskCar estimate draws on 1,833 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records 2 days ago. The seller is Sytner Tamworth BMW, based in Tamworth. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Fair price: £1,057 (4%) over the AskCar estimate of £23,443.
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
AskCar first saw this 2021 BMW 4 Series advertised 2 days ago. About 4 in 10 of 2021 BMW 4 Series cars are gone from sale within a month of being advertised: 103 of the 246 first advertised between 11 July 2026 and 2 October 2026.
Price history
AskCar first saw this advert on 3 November 2026 at £24,500. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 2,400 miles higher than the median mileage of a 2021 BMW 4 Series on AskCar.
Similar cars
48 other 2021 BMW 4 Series M Sport 2.0 petrol automatic coupes are for sale at UK dealers, from £17,490 to £27,975, as of 5 November 2026.
The 3 closest to this car in mileage:
- 2021 BMW 4 Series M Sport, 2.0 petrol coupe, blue. Mileage: 47,631 miles. Price: £26,990, £2,490 more than this car. Dealer: Car City UK Catterick in Catterick. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-d6ee91adc88a
- 2021 BMW 4 Series M Sport, 2.0 petrol coupe, white. Mileage: 45,100 miles. Price: £22,990, £1,510 less than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-9b2f000e5574
- 2021 BMW 4 Series M Sport, 2.0 petrol coupe, black. Mileage: 44,827 miles. Price: £23,000, £1,500 less than this car. Dealer: Colin Ludwell Cars in Bristol. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-31c98146fd08
- The nearest: 2021 BMW 4 Series M Sport, 2.0 petrol coupe, blue, 16 miles from this car. Mileage: 28,025 miles. Price: £23,099, £1,401 less than this car. Dealer: Motorpoint Oldbury in Oldbury. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-1e94fcfa8fd3
Browse all BMW 4 Series cars for sale · 2021 BMW 4 Series price guide
More like this
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Photos
27 photos of this car are on its AskCar page.
As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.