Frank Valverde - Stuntman died in a crash with a Ferrari 365 GT4 2+2

Yes, it's another true story.

The following Spanish link provides more detail about it including information about his other stunts:

http://pilotos-muertos.com/2014/Valverde%20Frank.html

The following video provides a collection of his stunts, including the fatal stunt at the port of Marseille on June 13th of 1982. I have set the video to start at this point:

Prior to this stunt he seemed to have used a 365GT4 2+2 for another cascade stunt into the water:
I only could find this material about it: