I can only guess, a 40's Chevy Modified Sportsman car, from Argentina?

I apprecaite Adriana Cobos letting me know in the comments that "the car shown is a replica of a "Turismo Carretera", the most important racing category from Argentina. Juan Manuel Fangio, before racing in F1 raced in this category. The translation for Turismo Carretera would be something like Road Touring. Some info (spanish), http://es.wikipedia.org/wiki/Anexo:Historia_del_Turismo_Carretera http://www.museofangio.com/es/visita-virtual/museo-fangio/8-hombres-y-maquinas-la-pasion-del-tc

For comparison, Fangio's first race car was a 39 Chevy

I posted that 2 years ago: http://justacarguy.blogspot.com/2012/01/fangios-first-race-car-1939-chevrolet.html