2020 BMW 4 Series Gran Coupe 2.0 420i M Sport

Overview

• Make: BMW
• Model: 4 Series Gran Coupe
• Trim: M Sport
• Version: 2.0 420i M Sport Auto RWD Euro 6 (s/s) 5dr (181 bhp)
• Year: 2020
• Mileage: 42,624 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 156 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 42,624 miles on the clock, this 2020 BMW 4 Series Gran Coupe M Sport has done roughly 12,800 fewer miles than a typical 2020 BMW 4 Series Gran Coupe. The AskCar estimate for this car is £18,071. It is priced at £18,990, which is £919 above that estimate. The AskCar estimate uses 1,174 UK dealer adverts for the BMW 4 Series Gran Coupe, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert for 3 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Partridge BMW, based in Eastleigh. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £919 (5%) over the AskCar estimate of £18,071.

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 1,174 priced BMW 4 Series Gran Coupe adverts across different ages and specifications, as of 7 November 2026.

A 2020 BMW 4 Series Gran Coupe with the 2.0 petrol engine is typically advertised at £16,000: the median of the 56 for sale on AskCar, as of 7 November 2026.

Time on sale

AskCar first saw this 2020 BMW 4 Series Gran Coupe advertised 3 days ago. About 4 in 10 of 2020 BMW 4 Series Gran Coupe cars are gone from sale within a month of being advertised: 40 of the 94 first advertised between 12 July 2026 and 4 October 2026.

Price history

AskCar first saw this advert on 4 November 2026 at £18,990. 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 7 November 2026: valid until 10 May 2027.

It failed its MOT on 11 May 2026 (rear upper brake cable insecure) and passed later the same day.

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge; offside rear tyre worn close to legal limit/worn on edge.

Mileage at that test: 32,029 miles, which matches the advertised 42,624 miles.

Advertised mileage is about 12,800 miles lower than the median mileage of a 2020 BMW 4 Series Gran Coupe on AskCar.

Similar cars

22 other 2020 BMW 4 Series Gran Coupe M Sport 2.0 petrol automatic hatchbacks are for sale at UK dealers, from £11,495 to £19,850, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, grey. Mileage: 43,593 miles. Price: £16,990, £2,000 less than this car. Dealer: Dick Lovett in Potters Bar. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-7a9941df0738
• 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, white. Mileage: 44,000 miles. Price: £17,499, £1,491 less than this car. Dealer: Adam Performance in Haslingden. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-db1dfbac4c6c
• 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, white. Mileage: 44,101 miles. Price: £15,960, £3,030 less than this car. Dealer: Hippo Motor Group Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-4e846158bdc0

• The nearest: 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, white, 50 miles from this car. Mileage: 70,000 miles. Price: £14,590, £4,400 less than this car. Dealer: Aylas Cars in Slough. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-ee363e8dcd3a