2023 BMW Z4 3.0 M40i Sport

Overview

• Make: BMW
• Model: Z4
• Trim: Sport
• Version: 3.0 M40i Sport Auto RWD Euro 6 2dr (335 bhp)
• Year: 2023
• Mileage: 14,500 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 180 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW Z4 Sport has covered 14,500 miles, around 2,600 fewer miles than is typical for its age. Priced at £39,350, it is advertised £1,303 below the AskCar estimate of £40,653. The AskCar estimate uses UK dealer asking prices, including 524 BMW Z4 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 82 days ago. Its asking price has since fallen by £5,600. We checked its advertised mileage against the government's MOT record, and they match. The seller is Group 1 Chelmsford BMW, based in Chelmsford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,303 (3%) under the AskCar estimate of £40,653.

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 524 priced BMW Z4 adverts across different ages and specifications, as of 6 November 2026.

A 2023 BMW Z4 with the 3.0 petrol engine is typically advertised at £40,000: the median of the 22 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2023 BMW Z4 has been on sale for at least 82 days.

Price history

AskCar first saw this advert on 16 August 2026 at £44,950. Its asking price is now £39,350, £5,600 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 16 August 2026: £44,950
• 28 August 2026: £44,650
• 4 September 2026: £43,870
• 10 September 2026: £42,999
• 18 September 2026: £42,650
• 25 September 2026: £41,998
• 3 October 2026: £40,689
• 8 October 2026: £40,350
• 15 October 2026: £39,860
• 20 October 2026: £39,488
• 1 November 2026: £39,350

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 16 March 2027.

It has had one MOT, on 12 March 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 12,174 miles, which matches the advertised 14,500 miles.

Advertised mileage is about 2,600 miles lower than the median mileage of a 2023 BMW Z4 on AskCar.

Similar cars

4 other 2023 BMW Z4 Sport 3.0 petrol automatic convertibles are for sale at UK dealers, from £36,987 to £43,000, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW Z4 Sport, 3.0 petrol convertible, red. Mileage: 21,421 miles. Price: £39,950, £600 more than this car. Dealer: Lloyd Cockermouth BMW in Cockermouth. AskCar page: https://askcar.co.uk/car/bmw-z4-2023-79899fd0e769
• 2023 BMW Z4 Sport, 3.0 petrol convertible, black. Mileage: 7,147 miles. Price: £43,000, £3,650 more than this car. Dealer: Sytner Wolverhampton BMW in Wolverhampton. AskCar page: https://askcar.co.uk/car/bmw-z4-2023-c071625676ef
• 2023 BMW Z4 Sport, 3.0 petrol convertible, purple. Mileage: 31,044 miles. Price: £37,500, £1,850 less than this car. Dealer: Sytner Tamworth BMW in Tamworth. AskCar page: https://askcar.co.uk/car/bmw-z4-2023-5bc5bb7ea166