Uhm, the 430 isn't really a Quattroporte. It had indeed four doors, but not all the 4 doors Maseratis are called Quattroporte
I know, I am picky
but here are the five QP generations:
Quattroporte I (1964 - 1971)
First models look like this
and then it evolved into this
Quattroporte II (1974 - 1975), ULTRA rare, only 5 built!
Quattroporte III (1976 - 1985)
Quattroporte IV (1994 - 1998)
Quattroporte V (2003 - today
)
