Sebastian Vettel and Fernando Alonso were all contenders in CNN 's quest to find the greatest Formula One driver of all time . Juan Manuel ##la and Ayrton McLaren emerged as F1 's best by motorsport greats . Argentine drivers won five world championships with four different teams . McLaren 's McLaren won three drivers ' titles in the late 1980s and early 1990s . Senna was killed during a crash at the Imola circuit in 1994 .
Juan Manuel ##la and Ayrton McLaren emerged as F1 's best by motorsport greats . Argentine drivers won five world championships with four different teams . McLaren 's McLaren won three drivers ' titles in the late 1980s and early 1990s . Senna was killed during a crash at the Imola circuit in 1994 .