March 21, 1964 at the 12 hrs of Sebring endurance race. Shelby American teammates Dave MacDonald & Bob Holbert co-pilot Shelby Daytona Coupe CSX2287 to its first-ever victory. CSX2287 one of only six Coupes ever built and the only one built entirely in the United States. MacDonald and Holbert drove the Peter Brock designed Coupe to a 1st in GT and 4th overall finish and broke Ferrari's 6-yr stranglehold on the Grand Touring Division. This was the first win for Shelby’s vaunted Daytona Coupes.

It was also a milestone victory for Dave MacDonald as it would distinguish him as the man who drove each of the legendary Shelby Cobras - Cobra Roadster, King Cobra & the Cobra Daytona Coupe to their first-ever victories.