2021 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: 2021
• Mileage: 21,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 2.0 litres, 194 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 164 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2021 BMW Z4 M Sport is 21,000 miles. Its asking price of £28,490 is £1,071 above the AskCar estimate of £27,419. To work out the AskCar estimate, we analyse UK dealer adverts for 527 BMW Z4 cars across different ages and specifications. We first saw this car advertised 31 days ago. Its asking price has since fallen by £100. The latest MOT recorded 24,644 miles, above the advertised mileage. Check this with the dealer. MOT records show an expiry date of 14 June 2027. The seller is Stratstone BMW Bury St Edmunds, based in Bury St Edmunds. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,071 (3%) over the AskCar estimate of £27,419.

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 527 priced BMW Z4 adverts across different ages and specifications, as of 4 November 2026.

A 2021 BMW Z4 with the 2.0 petrol engine is typically advertised at £27,200: the median of the 29 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2021 BMW Z4 has been on sale for at least 31 days.

Price history

AskCar first saw this advert on 4 October 2026 at £28,590. Its asking price is now £28,490, £100 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 4 October 2026: £28,590
• 15 October 2026: £28,990
• 16 October 2026: £28,890
• 27 October 2026: £28,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 14 June 2027.

It has had 3 MOTs. The latest, on 29 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 24,644 miles. The advert says 21,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 9,800 miles lower than the median mileage of a 2021 BMW Z4 on AskCar.

Similar cars

25 other 2021 BMW Z4 M Sport 2.0 petrol automatic convertibles are for sale at UK dealers, from £22,399 to £32,999, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW Z4 M Sport, 2.0 petrol convertible, black. Mileage: 20,939 miles. Price: £27,771, £719 less than this car. Dealer: Berry Cobham BMW in Cobham. AskCar page: https://askcar.co.uk/car/bmw-z4-2021-a89e35d1421a
• 2021 BMW Z4 M Sport, 2.0 petrol convertible, white. Mileage: 21,144 miles. Price: £29,000, £510 more than this car. Dealer: Sytner High Wycombe BMW in High Wycombe. AskCar page: https://askcar.co.uk/car/bmw-z4-2021-a897e8ca324b
• 2021 BMW Z4 M Sport, 2.0 petrol convertible, black. Mileage: 20,364 miles. Price: £28,115, £375 less than this car. Dealer: Hippo Approved in Blackburn. AskCar page: https://askcar.co.uk/car/bmw-z4-2021-e8617309db5f

• The nearest: 2021 BMW Z4 M Sport, 2.0 petrol convertible, red, 35 miles from this car. Mileage: 35,307 miles. Price: £25,499, £2,991 less than this car. Dealer: Motorpoint Norwich in Norwich. AskCar page: https://askcar.co.uk/car/bmw-z4-2021-bd4c7f139165