Various modifications were proposed for production models of the Ca.331 C.N. Engines proposed for production models included the German 1,099-kilowatt (1,475-horsepower) Daimler-Benz DB 605, the Italian 931-kilowatt (1,250-horsepower) Isotta Fraschini Zeta R.C.42, and the Fiat RA-1050 RC.58 Tifone (Italian for "Typhoon"), an Italian copy of the DB 605 expected to give the Ca.331 C.N. a top speed of 644 kilometers per hour.