2023 BMW Z4 3.0 M40i

Price: £39,970. Fair price: £688 (1%) under the AskCar estimate of £40,658, our expected asking price for this car from its model, age, mileage and specification, drawing on 515 priced BMW Z4 adverts on AskCar as of 2 November 2026.

AskCar lists 555 used BMW Z4 from 408 UK dealerships, as of 2 November 2026.

Overview

  • Make: BMW
  • Model: Z4
  • Version: 3.0 M40i sDrive Auto RWD Euro 6 (s/s) 2dr (335 bhp)
  • Year: 2023
  • Mileage: 17,204 miles
  • Fuel: Petrol
  • Body: Convertible, 2 doors, 2 seats
  • Engine: 3.0 litres, 335 bhp
  • Gearbox: Automatic
  • Drive: Rear-wheel drive
  • Colour: Black
  • CO2: 184 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW Z4 has covered 17,204 miles. Its asking price of £39,970 is £688 below the AskCar estimate of £40,658. The AskCar estimate draws on 515 BMW Z4 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 94 days ago, the asking price has dropped by £5,030. You can find this car at Sytner Harold Wood BMW in Romford. 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: £688 (1%) under the AskCar estimate of £40,658.

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 2023 BMW Z4 with the 3.0 petrol engine is typically advertised at £40,000: the median of the 23 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2023 BMW Z4 has been on sale for at least 94 days.

Price history

AskCar first saw this advert on 31 July 2026 at £45,000. Its asking price is now £39,970, £5,030 less. The latest price cut was seen on 25 October 2026.

Price changes recorded:

  • 31 July 2026: £45,000
  • 16 August 2026: £44,470
  • 28 August 2026: £44,270
  • 11 September 2026: £43,470
  • 12 September 2026: £42,970
  • 27 September 2026: £42,470
  • 9 October 2026: £41,970
  • 20 October 2026: £41,000
  • 25 October 2026: £39,970

Mileage and MOT

Advertised mileage is about 800 miles lower than the median mileage of a 2023 BMW Z4 on AskCar.

Browse all BMW Z4 cars for sale · 2023 BMW Z4 price guide

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Photos

31 photos of this car are on its AskCar page.

As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.