The Quattroporte has been on the market for five years and since the complete replacement is not due until 2012, Maserati has chosen to develop a mid-lifecycle update.

Details on this redesigned version of the Maserati Quattroporte and Quattroporte S, for the 2009 model year, have just been unveiled.

The Quattroporte will use a 4.2 liter engine with four hundred horsepower output and a top speed of 270 kilometers an hour while the Quattroporte S will use a 4.7 liter engine which outputs four hundred and thirty horsepower and has a top speed of 280 kilometers an hour.

One of the sexiest luxurious cars, the Maserati GranTurismo, is getting a performance upgrade in the new GranTurismo S, to be unveiled in Geneva next week. The S model shares the same 440hp 4.7 liter engine with another Italian beast, the Alfa 8C Competizone, and is coupled with an electro-actuated MC-Shift gearbox mounted on the rear transaxle for optimized weight distribution and faster shifting times.

Other performance enhancements include dual cast iron and aluminum brake discs with aluminum 6 piston calipers built by Brembo, exclusively for Maserati. GranTurismo S also features new subtle visual tweaks, including new wheels, and a leather & Alcantara-trimmed interior with sport buckets.