1
Bob Garretson, Brian Redman, and Bobby Rahal drive a Porsche 935 K3 to victory in the 24 Hours of Daytona, the first IMSA GTP race. Bill Koll, Rob McFarlin, and Jeff Kline win the GTU class in a Porsche 911 (1981).
3
Art Christman makes the first sub-10 second (9.40) run on a 1/4-mile drag strip (1953).
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