This car is actually very lightly connected to Moretti. It is supposed to have a "Moretti Kit" Installed.
You will find below the description by © Archivio Vetture
This Lancia 750 Sport was auctioned by Coys about ten years ago on a couple of occasions but with no luck. The description indicated it as "1947 Lancia Moretti, chassis number 750-1360, used by the Scuderia Traguardo of Milan directed by the well-known Lancia racing preparer Rinaldo Tinarelli. The car was taken over by one of the team's investors, the noble Marchese Baldi Doria . Motto aluminum bodywork, modified Fiat chassis, Lancia Ardea engine reduced to 750cc and Moretti kit, which includes cylinder head, special cams, high compression pistons, Dell'Orto carburetors and free exhaust".