 In 1954 he founded Carrozzeria Boano in Grugliasco with his son Gian Paolo Boano (born 1930) who also had been with him while at Ghia.They took over some of the initial Ferrari 250 GT Coupé production from Pinin Farina.After only three years, Boano closed, and his son-in-law Ezio Ellena took over the remaining 50 units of 250 GT production in his Carrozzeria Ellena (1957–1966).