Ferrari launched a 250-based prototype coupé at the 1956 Geneva Motor Show which came to be called the Ferrari 250 GT Boano. Unable to meet the demand without expansion, Pinin Farina asked Mario Boano, formerly of Ghia, to handle the construction. When Fiat later recruited Boano, he handed production duties to his son-in-law Ezio Ellena. Ellena revised the car, raising the roof and removing the vent windows from the doors. Although production numbers are spotty, it is believed that Carrozzeria Boano built 74 250 GTs on the long-wheelbase chassis and Carrozzeria Ellena built another 50 Coupés. Worth noting that a dozen or so of Boano's production was focused on alloy-bodied versions (as opposed to all steel), likely built for competition-minded privateers, making those particularly desirable samples today. In 1958, Pinin Farina would expand production and launch its own version of the 250 GT Coupé, cars which became known as the 250 GT Coupé Pinin Farina.