Now Bruce has suggested it, It does look remarkably like a Falcon. The swept back arch does suggest its not a 27 and with it's the transom and a few other features it doesn't look like a 23 either. They did make other types with continental names like Velici, but they seem newer.
The company doesn't exist any more but one of the designers is very big naval architect, so I mailed him your photos.
De-Fib, as in "Defibrillator" that's a great name for a boat.
It's unlikely that Volvo will know which boat one of their engines went into but it's useful in terms of identifying the boat because boat builders tended to stick with either one or two types. For example a Fairline Targa 29 built in 97 would normally have Volvo AD31 engines but a 98 would have KAD32's. Similarly a Sealine 23 would have a single KAD32 up until a couple of years after it became a Sealine 25 then they put Volvo D3's in them.