Ferrari chairman Luca di Montezemolo last week confirmed his resignation from the company he's run for the past 23 years, but before he steps down he has one final undertaking-celebrating 60 years of the Prancing Horse's sales in the U.S. with the unveiling of a new special edition supercar. The U.S. remains Ferrari's single biggest market, with sales here for the first six months of the year up 13 percent to 1,062 cars, and the country is also home to some of the world's most discerning Ferrari collectors.