The Serenissima was built in small numbers in Bologna between 1965 and 1970 by Count Giovanni Volpi.  He had earlier run the Scuderia Serenissima racing team.  (Serenissima was a name once used for the Republic of Venice.)

1965 Serenissima 308 Jet Competizione. Model by Avenue 43
1966 Serenissima 4,800cc V8. Model by Politoys