Salvatore Diomante is an automobile engineer and restorer, best known as Bizzarrini's factory manager in the 1960s. Diomante resides in Nichelino, Italy and operates Autocostruzioni S.D., where he keeps parts, special tools and original moulds from Bizzarrini P538s and Bizzarrini 5300s. He rebuilds and restores old Bizzarrini cars, as well as other Italian exotic cars. He usually is called by owners to make spare parts. Some info talk about some new cars and replicas built using original and old sourced parts.