Well I read this in the article.
"So, about these new cars: Just six new big-block Daytona Coupes are being built by Shelby American as official "continuation" cars, each equipped with raw aluminum bodywork, white stripes, and the number four to make them identical to the original. That beefy V-8 engine is tied to a four-speed manual transmission, and they'll all have a unique Shelby chassis number to differentiate them from the countless kit cars and reproductions out there."

http://www.thedrive.com/news/13812/carroll-shelbys-secret-weapon-1964-cobra-daytona-coupe-going-back-into-production