Perhaps Z3 m coupe instead of Z4... http://www.poca.com/index.php/gallery/?g2_itemId=28631 Maybe some BMW Z4 influence too... http://www.poca.com/index.php/gallery/?g2_itemId=28629 The Volvo Sport Wagon redux? http://www.poca.com/index.php/gallery/?g2_itemId=28624