The Island Packet PY 41 is a unique semi displacement trawler based on the IP SP cruiser . The 41' shares many traits with it's motor sailor cousin including a ballasted keel that should make for a very seaworthy 41'. My favorite features are the excellent fuel economy per this Power and motor yacht article and the kid friendly 2nd stateroom. I also kind of like the forward cockpit as at anchor and dock hang out spot. I;m not sure how many were made but they seem pretty rare on the brokerage market.
I could easily picture this as a coastal cruiser for the family. Coming from a sailing family the odd for a powerboat layout seems pretty good to my eye. This would be awesome for week long adventures along the New England coast with short run times between interesting harbors. It would also make for a really nice Loop boat.