Let me also add that the P66 is the "uncle" of the much more famous P92 from Tecnam. Partenavia basically dissolved and was rebuilt again under the Tecnam name.
P92 is the modern P66, as you will always find it as a basic trainer in the many microlight/LSA/ultralight schools throughout the country. But Tecnam is seeing quite a bit of interest in their products around the whole world, including the USA.
There is also a VLA version of the P92, and similarly to what happened with the P66 in the past, some schools have received P92 VLA machines with government funding.
Ciao, Luca