2020 BMW Z4 2.0 20i M Sport

Overview

• Make: BMW
• Model: Z4
• Trim: M Sport
• Version: 2.0 20i M Sport Auto RWD Euro 6 (s/s) 2dr sDrive (194 bhp)
• Year: 2020
• Mileage: 40,475 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 2.0 litres, 194 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 139 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW Z4 M Sport has covered 40,475 miles. Priced at £20,550, it is advertised £3,085 below the AskCar estimate of £23,635. The AskCar estimate uses 515 UK dealer adverts for the BMW Z4, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 74 days ago. Its asking price has since fallen by £2,950. The government's MOT record matches its advertised mileage. You can find this car at Car Planet Watford in Rickmansworth. 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

Good value: £3,085 (13%) under the AskCar estimate of £23,635.

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 515 priced BMW Z4 adverts across different ages and specifications, as of 2 November 2026.

A 2020 BMW Z4 with the 2.0 petrol engine is typically advertised at £24,900: the median of the 31 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2020 BMW Z4 has been on sale for at least 74 days.

Price history

AskCar first saw this advert on 20 August 2026 at £23,500. Its asking price is now £20,550, £2,950 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 20 August 2026: £23,500
• 1 September 2026: £23,200
• 8 September 2026: £22,900
• 15 September 2026: £22,600
• 22 September 2026: £22,300
• 28 September 2026: £22,000
• 4 October 2026: £21,700
• 9 October 2026: £21,400
• 16 October 2026: £21,150
• 21 October 2026: £20,850
• 28 October 2026: £20,550

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 27 February 2027.

It has had 5 MOTs. The latest, on 27 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 37,519 miles, which matches the advertised 40,475 miles.

Advertised mileage is about 200 miles lower than the median mileage of a 2020 BMW Z4 on AskCar.

Similar cars

28 other 2020 BMW Z4 M Sport 2.0 petrol automatic convertibles are for sale at UK dealers, from £18,995 to £29,750, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW Z4 M Sport, 2.0 petrol convertible, red. Mileage: 40,687 miles. Price: £24,940, £4,390 more than this car. Dealer: Bowker BMW Blackburn in Blackburn. AskCar page: https://askcar.co.uk/car/bmw-z4-2020-473533d0b065
• 2020 BMW Z4 M Sport, 2.0 petrol convertible, white. Mileage: 41,281 miles. Price: £23,950, £3,400 more than this car. Dealer: Lloyd Carlisle BMW in Carlisle. AskCar page: https://askcar.co.uk/car/bmw-z4-2020-bc8111679c34
• 2020 BMW Z4 M Sport, 2.0 petrol convertible, blue. Mileage: 42,700 miles. Price: £25,000, £4,450 more than this car. Dealer: Kallenhard in Leighton Buzzard. AskCar page: https://askcar.co.uk/car/bmw-z4-2020-4767ddd31745

• The nearest: 2020 BMW Z4 M Sport, 2.0 petrol convertible, red, 18 miles from this car. Mileage: 32,205 miles. Price: £25,799, £5,249 more than this car. Dealer: Motorpoint Chingford in Chingford. AskCar page: https://askcar.co.uk/car/bmw-z4-2020-e04ff7e47e33