The 4200 was actually built to a price by Maserati so is lower quality - things like the 3200 being one piece panel from the rear quarter, over the roof, down to the front wing, round the front and back round to the other rear quarter (done with hidden welds and hand finishing....looks fantastic but too expensive, hence the 4200 wings are bolt on instead).
Probably a reason why so many were written off; too expensive to repair. Also the ungainly crease across the nose where the front bumper meets the metalwork, IMO, spoils the fluency of the front end design.
The thing is that if it wasn't for the 3200 then there would be no 4200 so you can't exactly hate it Benny!