There it is! Legally, it is not a Performance Catamaran sponsored product and thus should not be called Nacra because of trademark issues. However, almost anyone I have spoken to about them, refer to the cat as a Nacra Express.
Last year, I had a long talk with Performance Catamaran about the Express. It is an aftermarket boat using the 6.0. The 6.0 flopped in the US but was a hit in Europe. A group created the Express with the aftermarket sail changes. After a couple years, Performance then released the 6.0 NA. It out sold the entire 6.0 US run in only 5 or so months
Kris