May 5 1950
Bill France and Curtis Turner of NASCAR fame enter in the Carrera Panamericana race, a 2,172 mile race from Mexico to Guatemala. They crash out of the race.
I guess Bill figured he was safer building tracks in the U.S. where they could only do 200 miles per hour in a circle. Now before anyone starts sending me hate mail, I'm just kidding. (Not about Bill and Curtis, they really did enter and they really did crash.)