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DAYTONA BEACH, FL - APRIL 4, 1959: Indy cars take to the high banks of Daytona International Speedway for testing. Jim Rathmann, 1958 Monza winner and 1960 Indianapolis 500 winner, won both races this day. (Photo by ISC Archives/CQ-Roll Call Group via Getty Images)

DAYTONA BEACH, FL - APRIL 4, 1959:  Indy cars take to the high banks of Daytona International Speedway for testing. Jim Rathmann, 1958 Monza winner and 1960 Indianapolis 500 winner, won both races this day.  (Photo by ISC Archives/CQ-Roll Call Group via Getty Images)