2023 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 [Tech/Pro Pack] Auto RWD Euro 6 5dr Step (181 bhp)
• Year: 2023
• Mileage: 31,262 miles
• Fuel: Petrol
• Body: Coupe, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Green
• CO2: 152 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW 4 Series Gran Coupe M Sport has covered 31,262 miles. The dealer is asking £28,208, which is £669 below the AskCar estimate of £28,877. To work out the AskCar estimate, we analyse UK dealer adverts for 1,183 BMW 4 Series Gran Coupe cars across different ages and specifications. Since we first spotted the advert 23 days ago, the asking price has dropped by £1,297. The advertised mileage is lower than the latest MOT reading of 32,149 miles. Ask the dealer to explain. Its MOT is recorded as valid until 21 September 2027. The seller is Vertu BMW Durham, based in Durham. 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

Fair price: £669 (2%) under the AskCar estimate of £28,877.

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 1,183 priced BMW 4 Series Gran Coupe adverts across different ages and specifications, as of 6 November 2026.

A 2023 BMW 4 Series Gran Coupe with the 2.0 petrol engine is typically advertised at £28,600: the median of the 65 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2023 BMW 4 Series Gran Coupe has been on sale for at least 23 days.

Price history

AskCar first saw this advert on 14 October 2026 at £29,505. Its asking price is now £28,208, £1,297 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 14 October 2026: £29,505
• 20 October 2026: £29,165
• 1 November 2026: £28,521
• 4 November 2026: £28,208

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 21 September 2027.

It has had one MOT, on 22 September 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 32,149 miles. The advert says 31,262 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 3,100 miles higher than the median mileage of a 2023 BMW 4 Series Gran Coupe on AskCar.

Similar cars

24 other 2023 BMW 4 Series Gran Coupe M Sport 2.0 petrol automatic coupes are for sale at UK dealers, from £23,990 to £33,498, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, grey. Mileage: 33,164 miles. Price: £27,277, £931 less than this car. Dealer: CarSupermarket.com Newcastle in Tynemouth. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-231b7aaf01f7
• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, white. Mileage: 29,037 miles. Price: £28,250, the same price as this car. Dealer: Sytner Swansea MINI in Swansea. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-b9f0b424e67d
• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, blue. Mileage: 28,659 miles. Price: £28,498, £290 more than this car. Dealer: Arnold Clark Glasgow South Street Vauxhall Peugeot Citroen Ds Mazda Vanstorelepas in Glasgow. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-49ea041f5246

• The nearest: 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, green, 11 miles from this car. Mileage: 40,623 miles. Price: £26,921, £1,287 less than this car. Dealer: Vertu BMW Sunderland in Sunderland. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-c067c463b2b3