The new Maserati Quattroporte is displayed on "la Promenade des Anglais" in Nice, southern France, during a presentation to the media, Monday, Dec. 10, 2012. The new sixth-generation Maserati Quattroporte is a luxury four-door saloon made by Maserati in Italy and will be shown at the Detroit motor show in January 2013, production started in November 2012. (AP Photo/Lionel Cironneau)

Associated Press
The new Maserati Quattroporte is displayed on "la Promenade des Anglais" in Nice, southern France, during a presentation to the media, Monday, Dec. 10, 2012. The new sixth-generation Maserati Quattroporte is a luxury four-door saloon made by Maserati in Italy and will be shown at the Detroit motor show in January 2013, production started in November 2012. (AP Photo/Lionel Cironneau)
The new Maserati Quattroporte is displayed on "la Promenade des Anglais" in Nice, southern France, during a presentation to the media, Monday, Dec. 10, 2012. The new sixth-generation Maserati Quattroporte is a luxury four-door saloon made by Maserati in Italy and will be shown at the Detroit motor show in January 2013, production started in November 2012. (AP Photo/Lionel Cironneau)