[jmillet]

More info might facilitate finding a buyer. Model year and VIN are useful info. How is the car optioned? It looks like it doesn't have the Premium Package therefore manual seats, no cruise control, no automatic dimming interior and exterior mirrors, and standard AM/FM/CD audio system with 10 speakers rather than the THX certified premium audio system with upgraded audio power, Carver technology and 10 audiophile-quality speakers including 2 subwoofers.
Very few Z4 M Coupes are configured without the Premium Package so yours is unusual. It's perfectly configured for a driving school track car.