The 2016 Maserati Quattroporte is a 4-door, 5-seat Sedan, available in 3 trims, ranging from the S RWD to the GTS RWD. Upon introduction, the $99,900 S RWD is equipped with a standard 3.0L, 6-cylinder, engine that achieves 16-mpg in the city and 23-mpg on the highway. an Automatic transmission is standard. The $141,500 GTS RWD is equipped with a standard 3.8L, 8-cylinder, engine that achieves 15-mpg in the city and 22-mpg on the highway. an Automatic transmission is standard.