I'm afraid it's not a scam.
These boats used to have a pair of v8 mercruisers. Unfortunately most of the remaining examples...including the one I own....have been re engined with BMW marine abominations. These engines are designed and built by the Italians, who we all know can't find their arse hole with a finger, never mind produce an engine reliable enough to be used at sea.
A real shame, because the hulls are fantastic. A couple of kad42's or yanmar 300's and it would be awesome.