2021 BMW Z4 2.0 30i M Sport

Overview

• Make: BMW
• Model: Z4
• Trim: M Sport
• Version: 2.0 30i M Sport Auto RWD Euro 6 (s/s) 2dr sDrive (254 bhp)
• Year: 2021
• Mileage: 26,079 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 2.0 litres, 254 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 139 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 26,079 miles, this 2021 BMW Z4 M Sport has covered about 6,100 fewer miles than other 2021 BMW Z4 cars. Priced at £28,990, it is advertised £259 above the AskCar estimate of £28,731. 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 116 days, and its asking price has been cut by £2,600. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Savannah in Westcliff-on-SEA. 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: £259 (under 1%) over the AskCar estimate of £28,731.

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 116 days, and its asking price has been cut by £2,600. 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 9 July 2026 at £31,590. Its asking price is now £28,990, £2,600 less. The latest price cut was seen on 20 October 2026.

Price changes recorded:

• 10 July 2026: £31,590
• 23 August 2026: £30,990
• 18 September 2026: £29,990
• 20 October 2026: £28,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 17 December 2026.

It has had 2 MOTs. The latest, on 9 December 2025, passed.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge.

Mileage at that test: 21,389 miles, which matches the advertised 26,079 miles.

Advertised mileage is about 6,100 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, white. Mileage: 26,500 miles. Price: £25,495, £3,495 less than this car. Dealer: Mayfields in Telford. AskCar page: https://askcar.co.uk/car/bmw-z4-2021-f1059e879a34
• 2021 BMW Z4 M Sport, 2.0 petrol convertible, black. Mileage: 25,281 miles. Price: £28,998, the same price as this car. Dealer: Arnold Clark in Telford. AskCar page: https://askcar.co.uk/car/bmw-z4-2021-f36dee5f14b9
• 2021 BMW Z4 M Sport, 2.0 petrol convertible, black. Mileage: 24,134 miles. Price: £25,498, £3,492 less than this car. Dealer: Arnold Clark Dumfries Bmw Mini Geely in Dumfries. AskCar page: https://askcar.co.uk/car/bmw-z4-2021-d29ed6099772

• The nearest: 2021 BMW Z4 M Sport, 2.0 petrol convertible, white, 15 miles from this car. Mileage: 30,801 miles. Price: £26,700, £2,290 less than this car. Dealer: Saxtons.co.uk in Chelmsford. AskCar page: https://askcar.co.uk/car/bmw-z4-2021-f2d97c4e05ff