2021 BMW 4 Series 2.0 420i M Sport
Price: £22,980. Fair price: £1,055 (4%) over the AskCar estimate of £21,925, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,836 priced BMW 4 Series adverts on AskCar as of 14 November 2026.
AskCar lists 1,873 used BMW 4 Series from 1,076 UK dealerships, as of 14 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: 56,000 miles
- Fuel: Petrol
- Body: 2 doors, 4 seats
- Engine: 2.0 litres, 181 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Black
- CO2: 151 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 BMW 4 Series M Sport has covered 56,000 miles, around 11,600 more miles than is typical for its age. Priced at £22,980, it is advertised £1,055 above the AskCar estimate of £21,925. The AskCar estimate uses 1,836 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 1 day ago. Our latest MOT record expired on 4 August 2026. Check the current position with the dealer. The government's MOT record matches its advertised mileage. You can find this car at Oakdene Collection in Alfreton. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 14 November 2026.
Oakdene Collection is rated 4.7 out of 5 on Google.
Price
Fair price: £1,055 (4%) over the AskCar estimate of £21,925.
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 1,836 priced BMW 4 Series adverts across different ages and specifications, as of 14 November 2026.
A 2021 BMW 4 Series with the 2.0 petrol engine is typically advertised at £23,500: the median of the 150 for sale on AskCar, as of 14 November 2026.
Time on sale
AskCar first saw this 2021 BMW 4 Series advertised 1 day ago. About 4 in 10 of 2021 BMW 4 Series cars are gone from sale within a month of being advertised: 115 of the 274 first advertised between 14 July 2026 and 11 October 2026.
Price history
AskCar first saw this advert on 13 November 2026 at £22,980. Its asking price has not changed.
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 14 November 2026: the latest record we hold ran out on 4 August 2026; ask the dealer for the current MOT.
It has had 2 MOTs. The latest, on 5 August 2025, passed.
There were no advisories at the latest test.
Mileage at that test: 47,031 miles, which matches the advertised 56,000 miles.
Advertised mileage is about 11,600 miles higher than the median mileage of a 2021 BMW 4 Series on AskCar.
Browse all BMW 4 Series cars for sale · 2021 BMW 4 Series price guide
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Photos
45 photos of this car are on its AskCar page.
As of 14 November 2026, AskCar lists 600,711 cars and vans from 12,770 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.