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: 21,144 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 2.0 litres, 194 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 164 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW Z4 M Sport is advertised with 21,144 miles, approximately 11,100 below the typical mileage for its age. The AskCar estimate for this car is £27,431. It is priced at £29,000, which is £1,569 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 515 BMW Z4 cars across different ages and specifications. The dealer may accept less. This car has been on sale for at least 75 days, and its asking price is down £5,000. Its advertised mileage matches the government's MOT record. The seller is Sytner High Wycombe BMW, based in High Wycombe. 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: £1,569 (5%) over the AskCar estimate of £27,431.

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 2021 BMW Z4 with the 2.0 petrol engine is typically advertised at £27,100: the median of the 30 for sale on AskCar, as of 2 November 2026.

Time on sale

The dealer may accept less. This 2021 BMW Z4 has been on sale for at least 75 days, and its asking price has been cut by £5,000. About half of 2021 BMW Z4 cars are gone from sale within a month of being advertised: 27 of the 54 first advertised between 12 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 19 August 2026 at £34,000. Its asking price is now £29,000, £5,000 less. The latest price cut was seen on 2 November 2026.

Price changes recorded:

• 19 August 2026: £34,000
• 2 September 2026: £32,950
• 3 September 2026: £34,000
• 11 September 2026: £32,500
• 19 September 2026: £31,500
• 1 October 2026: £29,950
• 27 October 2026: £29,500
• 2 November 2026: £29,000

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 29 April 2027.

It has had 3 MOTs. The latest, on 16 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 19,383 miles, which matches the advertised 21,144 miles.

Advertised mileage is about 11,100 miles lower than the median mileage of a 2021 BMW Z4 on AskCar.

Similar cars

26 other 2021 BMW Z4 M Sport 2.0 petrol automatic convertibles are for sale at UK dealers, from £23,449 to £32,999, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW Z4 M Sport, 2.0 petrol convertible, black. Mileage: 21,000 miles. Price: £28,490, £510 less than this car. Dealer: Stratstone BMW Bury St Edmunds in Bury St Edmunds. AskCar page: https://askcar.co.uk/car/bmw-z4-2021-34dd1cacd19b
• 2021 BMW Z4 M Sport, 2.0 petrol convertible, black. Mileage: 20,879 miles. Price: £27,771, £1,229 less than this car. Dealer: Berry Banstead in Banstead. AskCar page: https://askcar.co.uk/car/bmw-z4-2021-257cad0a7bb7
• 2021 BMW Z4 M Sport, 2.0 petrol convertible, black. Mileage: 20,364 miles. Price: £28,115, £885 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, black, 7 miles from this car. Mileage: 23,127 miles. Price: £27,000, £2,000 less than this car. Dealer: Sytner Maidenhead BMW in Maidenhead. AskCar page: https://askcar.co.uk/car/bmw-z4-2021-74ebb1920416