Ferrari have named their 612 after Carrozzeria Scagliettis owner, Sergio Scaglietti, there was also a brother Franco Scaglietti. I understand they had a long standing relationship with Enzo. I know that Scaglietti was also known as Ferraris in-house fabricator, and has constructed perhaps the two most famous Ferraris of all time: the GTO and the pontoon-fendered Testa Rossa. Can anyone recommend a definitive book/article website where I can find out more information about this fascinating company. Are they still independently in business or have they been absorbed into the Ferrari factory?