not my style though.
edit* - don't know if it will be in production or if it's just a concept car. there were no details on the site, and if you google Z4 it doesn't look much like this.
Courtesy of Orsm.net.
http://www.orsm.net/fem/bmwm4/images/bmwm401.jpg
http://www.orsm.net/fem/bmwm4/images/bmwm402.jpg
http://www.orsm.net/fem/bmwm4/images/bmwm403.jpg
http://www.orsm.net/fem/bmwm4/images/bmwm404.jpg
http://www.orsm.net/fem/bmwm4/images/bmwm405.jpg