He also won the 1967 24 Hours of Le Mans on debut, and took a second win there in 1973. Jo Siffert. ... His one win at the 24 ...

He also won the 1967 24 Hours of Le Mans on debut, and took a second win there in 1973. Jo Siffert. ... His one win at the 24 Hours of Daytona came alongside Pedro Rodriguez in a Porsche 917K in 1971.

And this week, Andretti returns to that track 50 years after what would be his only Daytona 24-hour race win, though the race in 1972 was actually only six hours long. More about that in a moment.

South African Sarel van der Merwe, winner of the Daytona 24 Hours in 1984, has hung up his helmet. ... The decision ended a career dating back to 1967.