2020 BMW M4 3.0 BiTurbo

Overview

• Make: BMW
• Model: M4
• Version: 3.0 BiTurbo GPF DCT RWD Euro 6 (s/s) 2dr (425 bhp)
• Year: 2020
• Mileage: 45,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres, 425 bhp
• Gearbox: Automatic (DCT)
• Drive: Rear-wheel drive
• Colour: White
• CO2: 229 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2020 BMW M4 is 45,000 miles. Priced at £29,949, it is advertised £2,215 below the AskCar estimate of £32,164. To work out the AskCar estimate, we analyse UK dealer adverts for 738 BMW M4 cars across different ages and specifications. We first saw this car advertised 57 days ago. Its asking price has since fallen by £1,000. The last MOT shows 45,639 miles, more than the advert. This is worth checking with the dealer. MOT records show an expiry date of 30 June 2027. It is advertised by A1 Ortos in Oldham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,215 (6%) under the AskCar estimate of £32,164.

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 738 priced BMW M4 adverts across different ages and specifications, as of 2 November 2026.

A 2020 BMW M4 with the 3.0 petrol engine is typically advertised at £35,000: the median of the 51 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2020 BMW M4 has been on sale for at least 57 days.

Price history

AskCar first saw this advert on 6 September 2026 at £30,949. Its asking price is now £29,949, £1,000 less. The latest price cut was seen on 19 September 2026.

Price changes recorded:

• 6 September 2026: £30,949
• 19 September 2026: £29,949

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 30 June 2027.

It failed its MOT on 29 June 2026 (nearside inner headlamp has less than 1/2 LEDs not functioning; nearside rear tyre tread depth below requirements of 1.6mm; windscreen damaged but not adversely affecting driver's view) and passed 2 days later, on 1 July 2026.

Advisories at the latest test: nearside inner headlamp has less than 1/2 LEDs not functioning; nearside front tyre worn close to legal limit/worn on edge; windscreen damaged but not adversely affecting driver's view; and 1 more.

Mileage at that test: 45,639 miles. The advert says 45,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 8,300 miles higher than the median mileage of a 2020 BMW M4 on AskCar.