Solved -PJ606- Giuseppe Coda's Streamlined Prototype from 1932

[Paul Jaray]

Is it Dubonnet?

Still not. 

[Wendax]

Antoine-Marie Chedru involved?

[Paul Jaray]

The name is Italian. 
Not Antoine-Marie Chedru.

[Arunas]

Any famous constructor involved?

[Paul Jaray]

Nope.

[Arunas]

Maybe some prototype by Luca Barnocchi?

[Paul Jaray]

Nope...

[Paul Jaray]

I think my clue passed unnoticed: it's not a Dubonnet because it predates it of several years...but that car can lead you to the solution and they can be indeed related...

[targhediferro]

Giovanni Delfino?

[Wendax]

 

[Paul Jaray]

Giovanni Delfino?

Nope.

[Paul Jaray]

There are info about this car online too.
The man you are looking for was better known for his involvement with another manufacturer and its GP cars...

[targhediferro]

Ricotti?

[Paul Jaray]

Not Ricotti.

[Paul Jaray]

According to some sources, this project was probably known by Dubonnet 

[Paul Jaray]

This car was designed few years before Dubonnet's car and its design was patented the year before the Dolphin appeared.
Its designer proposed his design to a well-known French make, that year....

[Paul Jaray]

Ok, let's get it solved!
This man is closely linked to 2 famous italian brands (and they are connected together)...one still alive and one is long gone but not too obscure.
I'll lock it for who will find the 2 brands...and they are quite easy!

[4popoid]

Fiat & SPA?  If so, is the designer that we are looking for Michele Ansaldi?

[Paul Jaray]

Not Fiat & Spa or Ansaldi.

[Wendax]

Lancia and Chiribiri?

[Paul Jaray]

Not them...

[Wendax]

Maserati and Osca?

[Paul Jaray]

Maserati and Osca?

Wrong pair...

[4popoid]

Alfa Romeo & Isotta Fraschini?  If so, is the designer that we are looking for Giuseppe Merosi?

[Paul Jaray]

Alfa Romeo & Isotta Fraschini?  If so, is the designer that we are looking for Giuseppe Merosi?

Not them...