Complex sentence: The Maserati Quattroporte is a sports luxury four-door saloon made by Italian manufacturer Maserati in six generations, with the first launched in 1963 and the current model launched in 2013.
Split into simpler sentences: The Maserati Quattroporte is a luxury four-door sedan made by Maserati in Italy. There have been six generations of this car, with the first launched in 1963, and the current model launched in 2013.