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: 30,801 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

This 2021 BMW Z4 M Sport has covered 30,801 miles. The dealer is asking £26,700, which is £1,343 below the AskCar estimate of £28,043. 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 76 days, and its asking price has been cut by £2,800. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Saxtons.co.uk in Chelmsford. 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: £1,343 (4%) under the AskCar estimate of £28,043.

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 76 days, and its asking price has been cut by £2,800. 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 18 August 2026 at £29,500. Its asking price is now £26,700, £2,800 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 18 August 2026: £29,500
• 28 August 2026: £29,200
• 10 September 2026: £29,000
• 24 September 2026: £28,700
• 6 October 2026: £28,500
• 14 October 2026: £27,700
• 21 October 2026: £27,200
• 28 October 2026: £26,700

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 19 August 2027.

It has had 3 MOTs. The latest, on 20 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 30,809 miles, which matches the advertised 30,801 miles.

Advertised mileage is about 1,400 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: 29,543 miles. Price: £27,999, £1,299 more than this car. Dealer: Sandles Cars in King's Lynn. AskCar page: https://askcar.co.uk/car/bmw-z4-2021-64f740930d47
• 2021 BMW Z4 M Sport, 2.0 petrol convertible, black. Mileage: 28,217 miles. Price: £29,323, £2,623 more than this car. Dealer: Vines of Redhill BMW in Redhill. AskCar page: https://askcar.co.uk/car/bmw-z4-2021-2990d16ea7bb
• 2021 BMW Z4 M Sport, 2.0 petrol convertible, black. Mileage: 33,650 miles. Price: £25,500, £1,200 less than this car. Dealer: ESP Cars in Long Eaton. AskCar page: https://askcar.co.uk/car/bmw-z4-2021-0fe78caf55c3

• The nearest: 2021 BMW Z4 M Sport, 2.0 petrol convertible, white, 15 miles from this car. Mileage: 26,079 miles. Price: £28,990, £2,290 more than this car. Dealer: Savannah in Southend-on-Sea. AskCar page: https://askcar.co.uk/car/bmw-z4-2021-d880979edfb2