To confirm/clarify what has already been said:
- Started life with a Maserati engine (Chevy-powered at the time of puzzle photo)
- Not based on a Maserati chassis, but there is a Maserati connection (other than the original engine?)
Was the body custom made or based on something existing (e.g., Devin or other fiberglass body)
Started life with a Maserati engine (Chevy-powered at the time of puzzle photo): Yes
Not based on a Maserati chassis, but there is a Maserati connection: Yes
Other than the original engine? No
Was the body custom made or based on something existing (e.g., Devin or other fiberglass body): I think, custom-made