[Mekola]

Nasif Estefano - F1 driver at 1960 Argentine GP and 1962 De Tomaso F1 works driver.
Killed in 1973 during a Turismo Carretera race - Nonetheless was crowned then as the only post-mortem champion of that series.

Juan Manuel Bordeu (his godfather was no other than Fangio), was about to enter F1 in 1961, but a Goodwood accident prevented it.
Survived that and other accidents in local series, retired at the end of 1972 as runner-up in Turismo Carretera,
but died by leukemia in 1990.

Both Estefano and Bordeu could have been the most probably Argie active drivers in the F1 of the 1960s, had they more chances and support to be in there at the time.