2020 BMW 4 Series 2.0 420i M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 420i GPF M Sport Auto RWD Euro 6 (s/s) 2dr (181 bhp)
• Year: 2020
• Mileage: 5,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 143 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 5,000 miles, this 2020 BMW 4 Series M Sport has covered about 38,100 fewer miles than other 2020 BMW 4 Series cars. Priced at £22,490, it is advertised £1,740 above the AskCar estimate of £20,750. The AskCar estimate draws on 1,826 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 102 days ago. The latest recorded MOT expiry date is 17 July 2026, which has passed. Confirm its status with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sk Car Sales . Com, based in Enfield. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £1,740 (8%) over the AskCar estimate of £20,750.

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 1,826 priced BMW 4 Series adverts across different ages and specifications, as of 6 November 2026.

A 2020 BMW 4 Series with the 2.0 petrol engine is typically advertised at £19,400: the median of the 38 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2020 BMW 4 Series has been on sale for at least 102 days.

Price history

AskCar first saw this advert on 27 July 2026 at £22,490. 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 6 November 2026: the latest record we hold ran out on 17 July 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 18 July 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 4,560 miles, which matches the advertised 5,000 miles.

Advertised mileage is about 38,100 miles lower than the median mileage of a 2020 BMW 4 Series on AskCar.

Similar cars

2 other 2020 BMW 4 Series M Sport 2.0 petrol automatic convertibles are for sale at UK dealers, from £18,499 to £19,700, as of 6 November 2026.

The 2 closest to this car in mileage:

• 2020 BMW 4 Series M Sport, 2.0 petrol convertible, black. Mileage: 26,211 miles. Price: £19,700, £2,790 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-60b8d0a43659
• 2020 BMW 4 Series M Sport, 2.0 petrol convertible, black. Mileage: 36,439 miles. Price: £18,499, £3,991 less than this car. Dealer: Sandles Cars in King's Lynn. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-dcc661750dec