My first thoughts were that this was a new or comparitively new aircraft, possibly a homebuilt and/or a bush aircraft. But with that comparitively narrow and pretty unique tail design I'm just beginning to wonder if this is perhaps a lot older, despite the 3 bladed prop. Looks like someone got hold of a PZL-101 or Yak-12 and modernised it!
Better start fishing for clues....American?