I've found a Chat where they talk about this car. Some guy wrote that
This is the Manera Special built at Rafaela.
Sponsored by Don Luis Manera.
Chassis: Mercedes Benz 170
Safety and Motor: Ford 1947.
Body: Tandem, made of aluminum and iron.
Mechanics: Ponce prepared engine, with Edelbrock lids and 2 double intake Holley carburetors
José Fanta made assembly and alignment of the chassis.
Sanchez Brothers built the bodywork.
Maximum speed: 172 kph.
and it was Aston Martin DB R 1 "reproduction"