When Porco saw Piccolos engine, he said “Its Folgore!”. What does that mean?
Folgore means “lightning” in Italian. It’s the model of the engine (Fiat Folgore A.S.2), but we don’t know why Miyazaki chose the name Folgore. In the manga, “Folgore” is the name of Porco’s plane, not its engine. In “3000 Miles in Search of Mother”, the TV anime series Miyazaki worked on, “Folgore” is the name of the ship which the Italian boy, Marco (from Genova, as Porco is) took to Argentina to look for his mother.