 The car was initially an Enzo Ferrari but the owner James Glickenhaus preferred the styling of Ferrari 's 1960s race cars , the P Series . The project cost Glickenhaus US $ 4 million and was officially presented to the public in August 2006 at the Pebble Beach Concours d 'Elégance . Several websites were allowed to publish images of the clay model in July 2006 . 
