Today’s Nineties model is … neither of those things.
After the initial Quattroporte’s run as a legitimate and very early example of a super sedan, the model (like its parent company) fell on hard times. After the first generation wrapped up production in 1969, Maserati built a couple of special one-off examples for some dignitaries, then threw in the towel on sedans.
Quattroporte did not return until 1976, and when it did it was a very different sort of vehicle. The large sedan was front-drive and shared a platform with the decidedly non-sporty Citroën SM. It also borrowed its V6 engine from the Maserati Merak. Citroën was sort of out of money at the time, and the Quattroporte’s second album was around for just three model years and sold in very limited markets.