There are 4 Wingtip To Wingtip PANZL S-330 aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 2003 and 2010.
N330JK
2010 Wingtip To Wingtip LLC PANZL S-330
Sarasota, FL
N330SM
2004 Wingtip To Wingtip LLC PANZL S-330
Kalispell, MT
N422DM
2003 Wingtip To Wingtip LLC PANZL S-330
Camarillo, CA
N540ML
Wingtip To Wingtip LLC PANZL S-330
Brighton, CO